Bump actions/cache/restore to v4

[dpprdan]

I am getting the following warning:

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/cache/restore@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

No breaking changes for v4 apparently, just the update to node 20: https://github.com/actions/cache/#v4

[dimitre]

+1 for this change!
and a release after updating actions save / restore
Thank you

[awalsh128]

Thanks, I'll pull this in this weekend, bump the cache and do a release.

[dimitre]

Thank you! can you please update the release?

[awalsh128]

Just need to fix a regression and then I can update. Will let you know.

https://github.com/awalsh128/cache-apt-pkgs-action-ci/actions/runs/7747709549/job/21128787116

[awalsh128]

Okay peeps I released https://github.com/awalsh128/cache-apt-pkgs-action/releases/tag/v1.4.0. I still haven't updated the regression but I think it is just due to an old obsolete package.

This hasn't been set to latest yet so please update your versions and confirm it is working for you. Then I can update the auto tags and mark it as latest once we seeing it behaving in the wild. Appreciate all of your help.

[tmr111116]

Thank you very much for the recent updates! I greatly appreciate the effort and time you've put into improving this project.
However, I've noticed that there are still some warnings appearing. It appears that an update to actions/cache/save@v3 might be required to fully resolve this issue.
Could you please take a look at this? Thank you once again for your dedication and support.