Before adding a PR I tested it on my fork. Without any changes related to electron and without any dependency updates all electron tests are failing.

Found a hint on the actions site:

ubuntu-latest pipelines will use ubuntu-24.04 soon. For more details, see actions/runner-images#10636

After changing the workflow back to ubuntu-22.04 the tests are working again.

Will provide this as hotfix.

I suspect in ubuntu-24.04 dependencies are missing needed by electron. We have enough time to solve the issue in 24.04 because 22.04 is supported for another 2 years.