Build jobs fail due to zlib 1.2.11 not available anymore
See https://gitlab.cern.ch/cms-cloud/cmssw-docker/-/jobs/20929456
The issue is that zlib
has been updated to 1.2.12 and the old version has been removed from the server we're using. The fix it to update to 1.2.12: http://www.zlib.net/zlib-1.2.12.tar.gz