This update for rspamd fixes the following issues:

- Update to 3.8.4
  - [Fix] Allow different template expansion parameters by
    @vstakhov in #4830

- Update to 3.8.3
  - This release includes a fix for a regression in redis_history
    which caused history to be recorded to a misnamed key. No other
    changes were introduced in this release

- Update to 3.8.2
  - [Feature] Add extraction type for from maps by @vstakhov in
    #4794
  - [Rework] Breaking: Do not report module as action by @moisseev
    in #4795
  - [Minor] Move server selection logic to common.js by @moisseev
    in #4796
  - [WebUI] Show pass-through module in History by @moisseev in
    #4798
  - [Feature] Allow to add templates to redis history prefix by
    @vstakhov in #4801
  - Deal with Connection and Host headers on proxying by @vstakhov
    in #4802
  - [Minor] configwizard: really use LOCAL_CONFDIR by @fatalbanana
    in #4804
  - [Fix] Resolve issue with bayes stat in rspamadm mode by
    @vstakhov in #4805
  - [Minor] rspamd_task API docs: fix broken link by @fatalbanana
    in #4807
  - [Minor] Add more returnbits to surbl configuration by
    @fatalbanana in #4803
  - [Feature] Support JSON logging when in syslog mode by @vstakhov
    in #4813
  - Fix issues with URL fragment in HTTP requests by @vstakhov in
    #4814
  - [Fix] Encode headers in metadata exporter by @vstakhov in #4816
  - Improve Kaspersky AS integration by @vstakhov in #4806
  - Allow dynamic keypairs loading in fuzzy storage by @vstakhov in
    #4818
  - Build tests with CTest in Cmake by @vstakhov in #4822