Caching is no longer working

[AB-xdev]

Starting from around 2 days ago we are receiving failures from our Renovate jobs:

The following error occurs when cache is used:

"Fatal error: EACCES: permission denied, mkdir '/tmp/renovate/cache/containerbase'"

This is likely caused by https://github.com/renovatebot/renovate/releases/tag/39.0.0 which changed the permissions:

deps: Renovate sidecard images will default to use Ubuntu 24.04 instead of 20.04, and use User ID 12021 instead of 1001

It looks like https://github.com/renovatebot/github-action?tab=readme-ov-file#persisting-the-repository-cache is using the incorrect UID

[rarkins]

The user ID was changed intentionally and documented in the v39 renovate release. If you wish to improve the docs for others on how to reset cache or override the UID then a PR would be welcome.

Closing this issue as it's not a bug. Use discussions if you want to discuss

[AB-xdev]

Created a PR:
#873

[rarkins]

Sorry, was a kind of "bug" (in docs). I had looked for 1000 or 1001 and not seen them. Thanks for the PR