apache2-mod_auth_openidc-2.3.8-bp152.2.6

- add apache2-mod_auth_openidc-2.3.8-CVE-2019-14857.patch to fix
  open redirect issue that exists in URLs with trailing slashes
  [bsc#1153666], [CVE-2019-14857]

- submission to SLE15SP1 because of fate#324447
- build with hiredis only for openSUSE where hiredis is available
- add a version for jansson BuildRequires

- update to 2.3.8
- changes in 2.3.8
  * fix return result FALSE when JWT payload parsing fails
  * add LGTM code quality badges
  * fix 3 LGTM alerts
  * improve auto-detection of XMLHttpRequests via Accept header
  * initialize test_proto_authorization_request properly
  * add sanity check on provider->auth_request_method
  * allow usage with LibreSSL
  * don't return content with 503 since it will turn the HTTP
    status code into a 200
  * add option to set an upper limit to the number of concurrent
    state cookies via OIDCStateMaxNumberOfCookies
  * make the default maximum number of parallel state cookies
    7 instead of unlimited
  * fix using access token as endpoint auth method in
    introspection calls
  * fix reading access_token form POST parameters when combined
    with `AuthType auth-openidc`
- changes in 2.3.7
  * abort when string length for remote user name substitution
    is larger than 255 characters
  * fix Redis concurrency issue when used with multiple vhosts
  * add support for authorization server metadata with
    OIDCOAuthServerMetadataURL as in RFC 8414
  * refactor session object creation
  * clear session cookie and contents if cache corruption is detected
  * use apr_pstrdup when setting r->user
  * reserve 255 characters in remote username substition instead of 50
- changes in 2.3.6
  * add check to detect session cache corruption for server-based
    caches and cached static metadata
  * avoid using pipelining for Redis
  * send Basic header in OAuth www-authenticate response if that's
    the only accepted method; thanks @puiterwijk
  * refactor Redis cache backend to solve issues on AUTH errors:
    a) memory leak and b) redisGetReply lagging behind
  * adjust copyright year/org
  * fix buffer overflow in shm cache key set strcpy
  * turn missing session_state from warning into a debug statement
  * fix missing "return" on error return from the OP
  * explicitly set encryption kid so we're compatible with
    cjose >= 0.6.0
- changes in 2.3.5
  * fix encoding of preserved POST data
  * avoid buffer overflow in shm cache key construction
  * compile with with Libressl

- update to 2.3.4
- requested in fate#323817

- initial packaging