[arcane,core] Use a sentinel instead of iterator for ItemLocalIdListViewT::end()

[grospelliergilles]

A sentinel uses less memory and only have a comparison operator.
It is only available since C++20.

[sonarqubecloud]

Quality Gate passed

Issues
2 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

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.41%. Comparing base (dcb961c) to head (af3d8b1).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2823      +/-   ##
==========================================
- Coverage   71.44%   71.41%   -0.04%     
==========================================
  Files        2574     2574              
  Lines      194789   194781       -8     
  Branches    23093    23090       -3     
==========================================
- Hits       139176   139105      -71     
- Misses      46971    47030      +59     
- Partials     8642     8646       +4     

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