Release of 1.5.9

[jedla97]

Summary

Contains:

• Do updates, related to RHBQ 3.15.1 release #1403
  • Use fixed versions of external applications
  • Use 3.15 in CI
• [1.5.z] Backports and bump of Quarkus to 3.15.2 #1416
  • Bump Quarkus to 3.15.2 (pom and CI)
  • Apply idea code analysis suggestions
  • Retry container launch if failed

Please check the relevant options

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Dependency update
• Refactoring
• Release (follows conventions described in the RELEASE.md)
• Breaking change (fix or feature that would cause existing functionality to change)
• This change requires a documentation update
• This change requires execution against OCP (use run tests phrase in comment)

Checklist:

• Example scenarios has been updated / added
• Methods and classes used in PR scenarios are meaningful
• Commits are well encapsulated and follow the best practices

[jedla97]

Just a note, that ocp is not needed as we run it yesterday during backport and bum of Quarkus version.

[jedla97]

Par approved, CI green, merging