Ironically, at least for a couple recent projects... just installing dependencies fresh is as fast on GH Actions as the GH caching methods, so I removed the caching and simplified the workflows.

In fact, uv's docs half-suggest this:

> With uv, it turns out that it's often faster to omit pre-built wheels from the cache (and instead re-download them from the registry on each run). On the other hand, caching wheels that are built from source tends to be worthwhile, since the wheel building process can be expensive, especially for extension modules.

https://docs.astral.sh/uv/concepts/cache/#caching-in-continu...