feat: use edm4hep as upstream to eicd

This does not change the data model, but just introduces the CMakeLists support.

assigned to @wdconinc

added 2 commits

• 4eeaf1f1 - 1 commit from branch master
• 0cad54ea - feat: use edm4hep as upstream to eicd

Compare with previous version

enabled an automatic merge when the pipeline for 0cad54ea succeeds

canceled the automatic merge

enabled an automatic merge when the pipeline for 0cad54ea succeeds

merged