Remove tbb-2021.9.0 from lhcb nightlie, restore previous behaviour
Based on our conversation during the LIM meeting, I am removing tbb-2021.9.0 from the LHCb nightlies.
GitLab jobs artifacts no longer stored forever as of Monday, November 4th 08:30h. Further information under https://cern.ch/otg0152576
Based on our conversation during the LIM meeting, I am removing tbb-2021.9.0 from the LHCb nightlies.