cbmreco: Run event building and tracking by default.

added Online label

assigned to @fweig

enabled an automatic merge when the pipeline for d037ec1b succeeds

Dear @f.uhlig, @v.friese, @p.-a.loizeau,

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