Merge 21.0.93 and 21.0.94 (21.3.10 and 21.3.11) into 21.9 branch
This merge request merges the changes from the 21.0 branch between release/21.0.92 and release/21.0.94 into the 21.9 branch. This is done via a merge of release/21.3.11. (Last 21.3 release to be merged into 21.9 was release/21.3.9.)
release/21.0.93 is a Tier0 release. It's FT0-violating. It includes the FT0V MRs: !20652 (merged), !20005 (merged), !20021 (merged)
release/21.0.94 is a Tier0 release. It's FT0-preserving.
Here is the full diff between https://gitlab.cern.ch/atlas/athena/compare/release/21.3.9...release/21.3.11