Use profile auto level for WebRTC H264 encoder on Apple Silicon
<rdar://80345048>
Created attachment 435486 [details] Patch
Comment on attachment 435486 [details] Patch r=me
Committed r281030 (240511@main): <https://commits.webkit.org/240511@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 435486 [details].