Fix RRT-Star example not showing up on website or rerun.io/viewer

[Wumpf]

What

• Fixes RRT* example not showing on rerun.io/examples #5387

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 newly built examples: app.rerun.io
  • Using examples from latest main build: app.rerun.io
  • Using full set of examples from nightly build: app.rerun.io
• 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](https://build.rerun.io/pr/{{ pr.number }})
• [Docs preview](https://rerun.io/preview/{{ pr.commit }}/docs)
• [Examples preview](https://rerun.io/preview/{{ pr.commit }}/examples)
• Recent benchmark results
• Wasm size tracking

[github-actions]

Size changes

Name	main	5628/merge	Change
rrt-star.rrd	(none)	6.87 MiB	+100%