Runner caching issue seems to be back

Also having been fixed at one point (!608 (merged)), the runner caching issue seems to be back.

See first broken and then (after "clearing caches") fixed pipelines:

• https://gitlab.hzdr.de/hifis/overall/hifis.net/-/jobs/737717

@frust45

added Bug label

changed the description

assigned to @frust45

created branch 370-runner-caching-issue-seems-to-be-back to address this issue

mentioned in merge request !644 (closed)

mentioned in merge request !655 (merged)

assigned to @hueser93 and unassigned @frust45

added Progress::3_Doing label

mentioned in merge request !656 (merged)

mentioned in commit 8beac033

closed with merge request !656 (merged)

mentioned in merge request !740 (merged)