Update to latest egui main

[emilk]

This should unblock using svg for icons, thanks to

• Fix sometimes blurry SVGs emilk/egui#7071

[github-actions]

Web viewer built successfully. If applicable, you should also test it:

• I have tested the web viewer

Result	Commit	Link	Manifest
✅	c9bd98b	https://rerun.io/viewer/pr/10040	+nightly +main

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