Merge 21.3.20 and 21.3.21 into 21.9
Compare changes
This merge request merges all the changes that were made in the 21.3 branch between the release release/21.3.21 and the previous two releases release/21.3.18 and release/21.3.19.
A list of merge requests that were accepted between in release 21.3.21:
A list of merge requests that were accepted between in release 21.3.20:
Link to the full diff between release/21.3.21 and release/21.3.20 is available at https://gitlab.cern.ch/atlas/athena/compare/release/21.3.20...release/21.3.21 and the diff between release/21.3.20 and release/21.3.19 is available at https://gitlab.cern.ch/atlas/athena/compare/release/21.3.19...release/21.3.20