GHA post cache job cleanup permission issues

[jhlegarreta]

What happened?

GitHub actions post cache job clean up is raising a warning since it does not have permission to tar some directiories:
https://github.com/nipreps/nireports/actions/runs/12682317163/job/35347515432?pr=160

This likely comes from the path being used in the action:

nireports/.github/workflows/build_test_deploy.yml

Line 94 in ac6d730

path: /var/lib/apt

What command did you use?

N/A

What version of the software are you running?

main

How are you running this software?

Other

Is your data BIDS valid?

Yes

Are you reusing any previously computed results?

No

Please copy and paste any relevant log output.

Post job cleanup.
/usr/bin/tar --posix -cf cache.tzst --exclude cache.tzst -P -C /home/runner/work/nireports/nireports --files-from manifest.txt --use-compress-program zstdmt
/usr/bin/tar: ../../../../../var/lib/apt/lists/partial: Cannot open: Permission denied
/usr/bin/tar: ../../../../../var/lib/apt/lists/lock: Cannot open: Permission denied
/usr/bin/tar: Exiting with failure status due to previous errors
Warning: Failed to save: "/usr/bin/tar" failed with error: The process '/usr/bin/tar' failed with exit code 2

Additional information / screenshots

N/A

[jhlegarreta]

Similar errors affect at least another NiPreps GHA workflow employing the actions/cache action, nifreeze:
https://github.com/nipreps/nifreeze/actions/runs/12795723598/job/35673716543#step:14:2

niworkflows and fmriprep are hitting a cache, so not saving it:
https://github.com/nipreps/niworkflows/actions/runs/12779415051/job/35624027846#step:22:2