Update http/wpt/webrtc/video-script-transform.html, http/wpt/webrtc/video-script-transform-simulcast.html and imported/w3c/web-platform-tests/webrtc/simulcast/basic.https.html test expectations
<rdar://problem/124384964>
Committed 275964@main (aee4e88c815c): <https://commits.webkit.org/275964@main> Reviewed commits have been landed. Closing PR #25714 and removing active labels.