Add RTA/2022.04 stack with new persistency packing

RTA/2022.04 stack with new persistency packing

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

data/stacks/RTA/2022.04.yml

+name: RTA/2022.04
+type: lhcbcmake
+
+projects:
+  Gaudi: v36r5
+  Detector: v1r1
+  LHCb: v53r8p1
+  Lbcom: v33r8
+  Rec: v34r2
+  Allen: v2r1
+  Moore: v53r6
+
+toolchain:
+  type: LCG
+  version: 101
+
+platforms:
+  - x86_64_v2-centos7-gcc11-opt
+  - x86_64_v2-centos7-gcc11-dbg
+  - x86_64_v2-centos7-gcc11-do0
+  - x86_64_v2-centos7-clang12-opt
+  - x86_64_v2-centos7-clang12-dbg
+  - x86_64_v3-centos7-gcc11-opt+g
+
+tags:
+  - RTA
+  - Run3