feat: add a flag and a routine for flushing inactive login sessions

[norand94]

Related issue(s)

#2561

Checklist

• I have read the contributing guidelines.
• I have referenced an issue containing the design document if my change
  introduces a new feature.
• I am following the
  contributing code guidelines.
• I have read the security policy.
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• I have added tests that prove my fix is effective or that my feature
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Further Comments

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

Merging #3133 (2286d79) into master (316b582) will increase coverage by 2.78%.
The diff coverage is 100.00%.

❗ Current head 2286d79 differs from pull request most recent head 1acf097. Consider uploading reports for the commit 1acf097 to get more accurate results

@@            Coverage Diff             @@
##           master    #3133      +/-   ##
==========================================
+ Coverage   76.82%   79.61%   +2.78%     
==========================================
  Files         123      112      -11     
  Lines        8976     8001     -975     
==========================================
- Hits         6896     6370     -526     
+ Misses       1652     1225     -427     
+ Partials      428      406      -22     

Impacted Files	Coverage Δ
cmd/cli/handler_janitor.go	82.97% <100.00%> (+2.12%)	⬆️
cmd/janitor.go	100.00% <100.00%> (ø)
persistence/sql/persister_consent.go	80.12% <100.00%> (-7.47%)	⬇️
x/clean_sql.go	46.42% <0.00%> (-44.69%)	⬇️
x/hasher.go	73.33% <0.00%> (-17.98%)	⬇️
persistence/sql/persister_jwk.go	64.58% <0.00%> (-14.18%)	⬇️
cmd/cli/handler_jwk.go	88.23% <0.00%> (-11.77%)	⬇️
cmd/cli/handler.go	89.47% <0.00%> (-10.53%)	⬇️
persistence/sql/persister_grant_jwk.go	81.41% <0.00%> (-9.89%)	⬇️
... and 146 more

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[norand94]

I created PR which contains regenerated docs
ory/docs#848

[architeacher]

@aeneasr It seems like this has stalled for a long time.

[aeneasr]

That's true

[mikapfl]

I think after the merging of authentication request tables, the correct SQL is now:

delete from hydra_oauth2_authentication_session
where not exists (
    select from hydra_oauth2_flow where login_session_id = hydra_oauth2_authentication_session.id
);

works at least in postgresql.

[alexandre-melard]

Dear @norand94 are you still working on this?
This would be a great thing to have in janitor
Best Regard
Alex