[backend] remove LRU session cache in redis session store (#13855)

[Jeremy Cloarec (JeremyCloarec)]

Proposed changes

• remove LRU session cache in redis session store to prevent in memory session temporary desync

Related issues

• fix "otpValidated" user status is not persisted across opencti-graphql instances #13855

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case (coverage and e2e)
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

[codecov]

Codecov Report

❌ Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 33.12%. Comparing base (b7ced05) to head (9db3094).
⚠️ Report is 97 commits behind head on master.

Files with missing lines	Patch %	Lines
...opencti-graphql/src/database/sessionStore-redis.js	0.00%	8 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #15362   +/-   ##
=======================================
  Coverage   33.12%   33.12%           
=======================================
  Files        3155     3155           
  Lines      214056   214047    -9     
  Branches    39111    39111           
=======================================
- Hits        70904    70903    -1     
+ Misses     143152   143144    -8     

Flag	Coverage Δ
opencti-client-python	45.59% <ø> (ø)
opencti-front	2.87% <ø> (ø)
opencti-graphql	69.09% <0.00%> (+<0.01%)	⬆️

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[Xavier Fournet (xfournet)]

const ?

[Xavier Fournet (xfournet)]

Sébastien Wauquier (@fellowseb) this code seems to be executed at least during end to end tests, but backend is not recording coverage for theses tests. would be possible to add coverage recording in that case ?