ci: fix version inconsistency and pytorch deprecation warning

[jackye1995]

https://github.com/lance-format/lance/actions/runs/21189464705/job/60952409705

https://github.com/lance-format/lance/actions/runs/21190703617/job/60956265092

For pytorch, first give this quick fix to let CI continue to work, actual fix is needed to use torch.compile

[github-actions]

PR Review

This PR addresses two CI issues:

1. Version inconsistency fix for lance-namespace-datafusion

Issue: The lance-namespace-datafusion crate was missing from .bumpversion.toml, causing it to remain at 2.0.0-beta.9 while the rest of the workspace is at 2.1.0-beta.0.

Fix: Adds the missing bumpversion entry and updates Cargo.lock.

This fix looks correct.

2. PyTorch deprecation warning suppression

P1 Concern - Warning filter placement:

The warning filter is applied globally at module import time, which will suppress this deprecation warning throughout the entire Python process, not just for this module. This is a heavy-handed approach.

Suggestions:

1. Consider using a context manager around the specific torch.jit.script decorators if feasible
2. Alternatively, document this global suppression more prominently (e.g., in the module docstring)
3. Ensure there is a tracking issue for the migration to torch.compile (the TODO comment mentions this)

The fix is acceptable as a quick workaround to unblock CI, but the global warning suppression should be addressed in a follow-up.