Tagging the FindXrootd.cmake fix, to make it easier to collect the new version of the code into the 21.X builds.
GitLab jobs artifacts no longer stored forever as of Monday, November 4th 08:30h. Further information under https://cern.ch/otg0152576
Tagging the FindXrootd.cmake fix, to make it easier to collect the new version of the code into the 21.X builds.