This update for loki, system-user-loki fixes the following issues:

loki version v2.0.0 is shipped by this update.

Update to version 1.5.0:

* Prep 1.5.0 release (#2098)
* updates loki config examples (#2097)
* Adds backtick for the quoted string token lexer. (#2095)
* Fixes unit in stats request log. (#2093)
* allow no encoding/compression on chunks (#2088)
* Accept suffixes to pod name in instance labels (#2080)
* removes yolostring (#2078)
* fluentd plugin: support placeholders in tenant field (#2074)
* Fixes a panic in dry-run when using external labels. (#2075)
* Allows to pass inlined pipeline stages to the docker driver. (#2076)
* Loki: Allow configuring query_store_max_look_back_period when running a filesystem store and boltdb-shipper (#2073)
* expand the match_all to also optionally allow counting bytes per stream (#2066)
* some metrics for measuring performance and failures in boltdb shipper (#2034)
* output a debug log if the requested path in the scrape config doesn't match any files (#2069)
* Targets not required in promtail config (#2026)
* Update loki to cortex master (#2030)
* Reverse entry iterator pool (#2064)
* Improve protobuf serialization (#2031)
* Recover from panic in http and grpc handlers. (#2059)
* Docker driver: Allow to provision external pipeline files to plugin (#2054)
* Fix a bug in range vector skipping data. (#2058)
* Docs: update Loki Helm Chart document to support Helm 3 (#2038)
* Fix promtail client default values (#2049)
* Fix spelling of per second (#2055)
* Update api.md (#2056)
* Chore: Correct typo "per seconds" (#2050)
* Fix bug in logql parsing that leads to crash. (#2046)
* fixes the cpu usage graphs (#2044)
* Add extraOutputs variable to support multiple outputs for fluent-bit (#2040)
* Swapped to container restarts over terminated reasons (#2043)
* Remove generated comment at top of .drone/drone.yaml (#2042)
* Dashboard: Loki Operational improvements (#2041)
* Support Post request in the frontend queryrange handler. (#2023)
* fluent-plugin-loki: Restructuring and CI (#2006)
* Revert "Update go from 1.13 to 1.14. (#2013)" (#2028)
* Update go from 1.13 to 1.14. (#2013)
* Adds :delegated flags to speed up build experience on MacOS. (#2009)
* logcli: Query needs to be stored into url.RawQuery, and not url.Path (#2027)
* more linter fixes (#2024)
* I <3 you Linter (#2022)
* Docs: Added labels content (#1999)
* Loki: refactor validation and improve error messages (#2021)
* Spelling (#2014)
* Change image tag from 1.4.1 to 1.4.0 in Helm chart (#2015)
* Update lz4 library to latest to ensure deterministic output. (#2010)
* make `loki_ingester_memory_streams` Gauge per tenant. (#2019)
* Loki: Improve logging and add metrics to streams dropped by stream limit (#2012)
* Fix a bad rebase between #1970 and #1965. (#2011)
* Adds config to disable HTTP and GRPC server in Promtail. (#2004)
* Allow to aggregate binary operations. (#1970)
* table client for boltdb shipper to enforce retention (#2001)
* Improve URL building in the logcli to strip trailing /. (#2000)
* Ensure trace propagation in our logs. (#1977)
* Loki: Adds an `interval` paramater to query_range queries allowing a sampling of events to be returned based on the provided interval (#1965)
* make boltdb shipper singleton and some other minor refactoring (#1995)
* Update cortex to latest. (#1982)
* Add a missing method to facade which is called by the metrics storage client in cortex (#1987)
* added extraCommandlineArgs in values file (#1981)
* Log error message for invalid checksum (#1713)
* Log slow query from the frontend by default in ksonnet. (#1980)
* incorporate some better defaults into table-manager configs (#1976)
* Update cortex vendoring to latest master (#1975)
* [Loki]: Cleanup dockerfile (#1949)
* Convert Loki modules to services (#1804)
* fix available stores for chunk and index in documentation for period config (#1974)
* Improve the local config to work locally and inside docker. (#1963)
* helm chart: add missing line feed (#1967)
* Docs: Update docker.md (#1966)
* chunk bounds metric now records 8h range in 1h increments (#1964)
* flush boltdb to object store (#1837)
* chunk lifespan histogram (#1958)
* Workaround for broken etcd gomod import (#1961)
* Go mod: explicit golang.org/x/net replace (#1953)
* Move build from source instructions to root readme. (#1951)
* update cortex to latest master (#1956)
* Loki Update the cut block size counter when creating a memchunk from byte slice (#1946)
* Fixes case handling in regex simplification. (#1950)
* Log docker driver config map. (#1903)
* version pin the docker image in docker-compose (#1945)
* Reverting helm changes which were included in Cortex 1.0 vendor upgrade because it resulted in us pushing an unstable helm.
* delete tag script filters by prefix instead of substring (#1942)
* Support stdin target via flag instead of automatic detection. (#1935)
* adds config validation, similar to cortex (#1939)
* bumps helm to keepalive-master after cortex vendoring (#1937)
* Update Cortex to latest master (#1869)
* Add no-file and keep-file log option for docker driver. (#1906)
* logcli: org-id/tls-skip-verify set via env var (#1922)
* Clarified that the api push path needs to be specified. (#1925)
* And the loki mixin
* Put loki-mixin and promtail-mixin dashboards in a folder.
* feat: tms readiness check bypass implementation
* this Dockerfile is a remnant from a long time ago, not needed. (#1918)
* only fetches one chunk per series in /series (#1914)
* Add cap_net_bind_service linux capabilities to Loki. (#1916)
* Fix fluent-bit metrics (#1915)
* s/dashboards/grafanaDashboards.
* fluentd loki plugin README: add note about labels (#1909)
* push images for `k` branches
* updating typo for end time parameter (#1905)
* updating helm and ksonnet to 1.4.1 updating Fluent Bit to correct image
* JSON encoding: avoid base64 encoding of []byte inside other slices (#1890)
* [helm loki/promtail] make UpdateStrategy configurable (#1898)
* Addition of a `/suspend` endpoint to Loki Canary (#1891)
* Removes file size check for pipe, not provided by linux. (#1893)
* Fixes possible panic in json pipeline stage. (#1894)
* Fix flaky promtail test (#1865)
* docs: cleaning up the comments for the cache_config, default_validity option (#1888)
* Adding a config change in release 1.4 upgrade doc Updating readme with links to new docs
* Sign helm package with GPG. (#1864)
* Add precision about the range notation for LogQL. (#1881)
* updating helm and ksonnet for 1.4.0 release
* clear out some changelog entries to fix a merge conflict from the release branch
* docs: update promtail docs for backoff (#1879)
* Support series API in logcli (#1861)
* support `match[]` encoding (#1875)
* Keep plugin install command example in one line (#1870)
* Add extraMount, extraVolumeMount to promtail helm chart for systemd-journal (#1871)
* documents frontend worker (#1873)
* clarify logcli commands and output (#1712)
* Logcli remote storage. (#1814)
* Sharding optimizations I: AST mapping (#1846)
* docs: tweak the doc section of the readme a little (#1856)
* Support configurable maximum of the limits parameter (#1798)
* bump gem version (#1853)
* throw exceptions on HTTPTooManyRequests and HTTPServerError so FluentD will retry (#1845)
* logcli client: use OrgID in LiveTail (#1850)
* remove a few places we recommend the schema version and consolidate in the configuration doc
* Pin helm version in circle-ci helm testing workflow. (#1849)
* Proposal: Promtail Push API (#1627)
* promtail retry 429 rate limit errors, clarifying risks in the docs of configuring multiple client sections in promtail, also increased the backoff and retry settings in promtail.
* Docs: Update configuration docs for redis (#1843)
* Log error message when source does not exist in extracted values (#1815)
* Helm/loki-stack: refresh default grafana.image.tag to 6.7.0 (#1825)
* Move default port for Loki to 3100 everywhere. (#1838)
* Change local storage directory to /loki/ and fix permissions (#1833) (#1834)
* Use 8080 for Loki http port  binding in tanka. (#1823)
* Adds a counter for total flushed chunks per reason. (#1819)
* Prevent prometheus to scrap both services (#1817)
* loki can not be started with loki-local-config.yaml (#1816)
* Optimize empty filter queries. (#1810)
* Improve fluentbit logfmt. (#1791)
* Test stats memchunk (#1809)
* Error handling: Show data stream at "debug" level, not "warn" (#1811)
* loki: update Cortex to master (#1799)
* Non-root user docker image for Loki. (#1706)

Update to version 1.4.1:

* updating changelog and version numbers in docs for 1.4.1 release
* JSON encoding: avoid base64 encoding of []byte inside other slices (#1890)
* Removes file size check for pipe, not provided by linux. (#1893)
* fixing release date
* Updating some of the references to v1.3.0 Adding an entry in the changelog to reference image name changes
* docs: update promtail docs for backoff (#1879)
* bump gem version (#1853)
* throw exceptions on HTTPTooManyRequests and HTTPServerError so FluentD will retry (#1845)
* promtail retry 429 rate limit errors, clarifying risks in the docs of configuring multiple client sections in promtail, also increased the backoff and retry settings in promtail.
* Adding upgrade doc and updating changelog for release