Update MSRV to 1.80

[emilk]

What

• Closes https://github.com/rerun-io/rerun/issues/8174

TODO

• [x] Check if there ae new clippy lints we should add
• [x] Rebase on main
• [x] Resolve all TODO(#8174)

Checklist

• [x] I have read and agree to Contributor Guide and the Code of Conduct

• [x] I've included a screenshot or gif (if applicable)

• [x] 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

• [x] The PR title and labels are set such as to maximize their usefulness for the next release's CHANGELOG

• [x] If applicable, add a new check to the release checklist!

• [x] If have noted any breaking changes to the log API in CHANGELOG.md and the migration guide

• PR Build Summary

• Recent benchmark results

• Wasm size tracking

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

To deploy documentation changes immediately after merging this PR, add the deploy docs label.

[github-actions[bot]]

Latest documentation preview deployed successfully.

Result	Commit	Link
✅	13d9ad4c4a7d0d252da794a0c0da09b003b9d2d5	https://landing-ar85tjwnn-rerun.vercel.app/docs

^{Note: This comment is updated whenever you push a commit.}