Update pixi.toml to use rerun_py package directly

[jleibs]

What

Our shim package broke with the update to pixi 0.22.

However, pixi now mostly does the correct thing with a source install of the rerun_py package, so we now use that instead of the shim package.

I introduced a new python-dev feature which is used for pulling in the dev version of rerun. The upside of this is it opens up another feature variant examples-pypi which uses the published version of rerun.

We should be able to do something similar with the wheel package as well.

Lastly, I had to re-generate our lockfile to get around some weird issues with tzdata. This bumped the lockfile version, which means dragging everyone forward to pixi 0.23

Checklist

• I have read and agree to Contributor Guide and the Code of Conduct
• I've included a screenshot or gif (if applicable)
• I have tested the web demo (if applicable):
  • Using examples from latest main build: rerun.io/viewer
  • Using full set of examples from nightly build: rerun.io/viewer
• The PR title and labels are set such as to maximize their usefulness for the next release's CHANGELOG
• If applicable, add a new check to the release checklist!

• PR Build Summary
• Recent benchmark results
• Wasm size tracking

To run all checks from main, comment on the PR with @rerun-bot full-check.

[github-actions]

Deployed docs

Commit	Link
762f51e	https://landing-dr1lb5g0q-rerun.vercel.app/docs

[teh-cmc]

Yeeee, I can build again 🙏

[teh-cmc]

@rerun-bot full-check

[github-actions]

Started a full build: https://github.com/rerun-io/rerun/actions/runs/9314292939