Automatically upload lockfile

[LucaMarconato]

I think it'd be great to automatically generate a uv.lock lockfile that users can refer to when facing reproducibility issues.

I wonder thought if having a lockfile updated often risks clogging the repo, not sure what's the best approach to this, maybe updating it as an artifact of the CI instead of tracking it in the repo?

[LucaMarconato]

Ah, I think I misread the tests, the integration is of each tool individually against anndata. Here we would need an integration across tools.