uv version in cache key

[nijel]

With the recent move to enable caching by default, the cache lifetime might be more a question.

The cache key currently includes uv version. As uv is a quickly moving target (2 releases a week) and the action always using the latest version (unless a specific one is pinned), this effectively discards the cache every couple of days.

I know there were some situations in the past when CI cache pruning corrupted cache, but generally the cache should be compatible between uv releases.

Maybe it's time to reconsider this part of the cache key?

[eifinger]

That's a good idea! The mechanism was carried over from setup-rye and now that uv makes sure to detect old version caches we do not need this anymore.