online: Add basic monitoring for TRD hitfinder.

Backport from DC_2404.

Note: requires !1778 (merged)

added Online label

assigned to @fweig

Apptainer runner failure is due to the infamous GEANT3 64b crash, so would just need to be restarted, but the real_data one is the same problem as in !1778 (merged)

added 3 commits

• d6b513f7...93899476 - 2 commits from branch computing:master
• d5e9f3bd - online: Add basic monitoring for TRD hitfinder.

Compare with previous version

enabled an automatic merge when the pipeline for d5e9f3bd succeeds

Dear @a.bercuci, @p.kaehler, @d.smith, @fweig,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

merged