Fix the nightlies for HepMC3 branch

Fix the nightlies for HepMC3 branch Same as in !58302 (merged)

Tag @jchapman

added urgent label

Build area was cleaned as per request posted in the DB. The full software build will be performed

This merge request affects 1 package:

• Generators/EvtGen_i

This merge request affects 1 file:

• Generators/EvtGen_i/CMakeLists.txt

added Generators master review-pending-level-1 labels

Thanks @averbyts

Tagging @tsulaia, so that he is aware.

added review-approved label and removed review-pending-level-1 label

The system determined that CI tests (with names matching "^CITest_Trigger.*$") are not needed for this code change. They are not run. This is not an indicator to restart the job.

CI Result FAILURE (hash 6f57e8d9)

	Athena	AthGeneration
externals
cmake
make
tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 62606]

Unrelated failure

mentioned in commit 53cb71e8

merged

added sweep:ignore label