[backend] Implement API to upsert endpoints (#3856)

[SamuelHassine]

Proposed changes

• [backend] Implement API to upsert endpoints

Related issues

• Closes Implement API to upsert endpoints #3856

[codecov]

Codecov Report

❌ Patch coverage is 0% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 44.59%. Comparing base (bfcbde2) to head (5c29da2).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...va/io/openbas/rest/asset/endpoint/EndpointApi.java	0.00%	20 Missing ⚠️
.../main/java/io/openbas/service/EndpointService.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3857      +/-   ##
============================================
- Coverage     44.63%   44.59%   -0.04%     
  Complexity     2873     2873              
============================================
  Files           779      779              
  Lines         23656    23677      +21     
  Branches       1674     1680       +6     
============================================
  Hits          10559    10559              
- Misses        12491    12512      +21     
  Partials        606      606              

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