Update transient HepMcParticleLink to use unsigned int for eventIndex

Once !31619 (merged) has been merged then this merge request will update the transient HepMcParticleLink class and fix the event number aliasing issue.

added full-build label

unmarked as a Work In Progress

build area is cleaned as MR is labeled as full-build

This merge request affects 1 package:

• Generators/GeneratorObjects

added 21.9 Generators review-pending-level-1 labels

CI Result FAILURE (hash b9640d74)

	Athena
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 154
For experts only: Jenkins output [CI-MERGE-REQUEST 43283]

added review-user-action-required label and removed review-pending-level-1 label

I think the test issue here is the same as elsewhere, that prior updates result in an (expected) change to the simulation output, which requires the reference test to be updated. We would like to get these changes in ASAP so it would be appreciated if this could be reviewed, with the test failure being ignored for the time being.

added review-pending-level-1 label and removed review-user-action-required label

Based on the information from @nstyles, failure of CI tests are not related to this MR.

The copyright could be updated to 2020, but it should further delay this MR.

WARNINGs are unrelated, approving.

Xiaozhong (L1)

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

Rebuilding after update of reference, to double check

Jenkins please retry a build

build area is cleaned as MR is labeled as full-build

This merge request affects 1 package:

• Generators/GeneratorObjects

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

CI Result SUCCESS (hash b9640d74)

	Athena
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 154
For experts only: Jenkins output [CI-MERGE-REQUEST 43326]

It is a sweep, and CI passes. WARNings are not related to this MR. Approving.

Xiaozhong (L1)

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

merged

mentioned in commit 5fae6242

added sweep:ignore label