[backend] update el core settings when updating indices mappings (#9157)

[JeremyCloarec]

Proposed changes

• update core settings on each platform start

Related issues

• ELASTICSEARCH__NUMBER_OF_REPLICAS does not update the opencti-core-settings component template #9157

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

Attention: Patch coverage is 40.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 65.00%. Comparing base (e63f655) to head (a3b3b7c).

Files with missing lines	Patch %	Lines
...ti-platform/opencti-graphql/src/database/engine.js	40.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9179      +/-   ##
==========================================
- Coverage   65.00%   65.00%   -0.01%     
==========================================
  Files         624      624              
  Lines       59530    59532       +2     
  Branches     6599     6596       -3     
==========================================
  Hits        38700    38700              
- Misses      20830    20832       +2     

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