Add Sonar Qube quality check

Benoît SEIGNOVERTrequested to merge
add-sonar-qub-quality-check into main
  • Update Gitlab CI to check the code quality with Sonar Qube.
  • Fix misc maintenance warnings.
  • Fix security hotspots on catastrophic backtracking.
Edited by Benoît SEIGNOVERT

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