Add RTA/2025.03.17 stack, full release on master up to and including DaVinci

Included projects:

  Gaudi: v39r3
  Detector: v2r5
  LHCb: v56r5
  Lbcom: v36r5
  Rec: v37r4
  Allen: v5r4
  Moore: v56r4
  DaVinci: v65r3

Release checklist (to be filled by the shifter)

• release build validation (to be checked with the MR author)
• RPMs deployment
• CVMFS installation
• web pages update