Use same API in Alina for Sequential and Distributed solvers

[grospelliergilles]

The new class AlinaSolver replaces AlinaSequentialSolver and AlinaDistributedSolver.

[sonarqubecloud]

Quality Gate passed

Issues
9 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 84.28571% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.45%. Comparing base (5bf85e5) to head (d06d5f7).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
arccore/src/alina/arccore/alina/AlinaLib.cc	84.28%	9 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2795      +/-   ##
==========================================
- Coverage   71.45%   71.45%   -0.01%     
==========================================
  Files        2572     2572              
  Lines      194287   194293       +6     
  Branches    23062    23064       +2     
==========================================
- Hits       138831   138829       -2     
- Misses      46841    46846       +5     
- Partials     8615     8618       +3     

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