add worker to cleanup old OAuth State References

[xcoulon]

The worker is configured to run every hour (configurable) and delete all OAuth state references older than 24hrs (hard-coded).

The worker is based on the same implementation as the other workers (for user deactivation) and thus runs in a go routine and uses a lock to prevent concurrent executions (although, in this case, it's not a big deal)

Also, include a migration step to remove all OAuth state refs older than 24hrs during startup, using a DB migration script.

Fixes https://issues.redhat.com/browse/CRT-539

Signed-off-by: Xavier Coulon xcoulon@redhat.com

[codecov[bot]]

Codecov Report

Merging #866 into master will decrease coverage by 0.10%. The diff coverage is 60.60%.

@@            Coverage Diff             @@
##           master     #866      +/-   ##
==========================================
- Coverage   78.46%   78.35%   -0.11%     
==========================================
  Files         100      101       +1     
  Lines        9443     9499      +56     
==========================================
+ Hits         7409     7443      +34     
- Misses       1494     1512      +18     
- Partials      540      544       +4     

Impacted Files	Coverage Δ
authentication/provider/repository/state.go	45.71% <28.57%> (-1.91%)	:arrow_down:
configuration/configuration.go	81.25% <33.33%> (-0.66%)	:arrow_down:
...entication/provider/worker/state_cleanup_worker.go	78.94% <78.94%> (ø)
migration/migration.go	67.61% <100.00%> (+0.18%)	:arrow_up:
...rovider/service/authentication_provider_service.go	65.78% <0.00%> (-7.55%)	:arrow_down:

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[xcoulon]

Very nice!

thanks ;)