Fix main CI by disabling rav1d/asm feature

[emilk]

What

This disables the asm feature of rav1d, which means:

• No need to install nasm (fixing the build)
• Slower video decoding (but still limited mainly by Unify GPU texture conversion (with focus on chroma downsampled formats) #7608)

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!
• 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.

[emilk]

@rerun-bot full-check

[github-actions]

✅ Full build: https://github.com/rerun-io/rerun/actions/runs/11214896778

[emilk]

Testing nightly in: https://github.com/rerun-io/rerun/actions/runs/11215413314 (this shouldn't block this PR, but may produce problems that warrant a follow-up PR)

[emilk]

Added a TODO to re-enable the asm feature on pip package builds in

• Release 0.19 #7609