Bug 1940514 [wpt PR 49973] - Include <img> alt text in <option> label…

…s, a=testonly

Automatic update from web-platform-tests
Include <img> alt text in <option> labels

Discussion: whatwg/html#10317
Change-Id: Ie6ed230eb75d3ec24c51c76d587a11dde3d44b5a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6137091
Reviewed-by: David Baron <dbaronchromium.org>
Commit-Queue: Joey Arhar <jarharchromium.org>
Cr-Commit-Position: refs/heads/main{#1404536}

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wpt-commits: 061274f978d6b57e5e6bc4ee2cd7a882d886bb91
wpt-pr: 49973

UltraBlame original commit: ae399208478ed46aed5d329251e91d83b9dc76dc