Resync libwebrtc to M115.0.5790.95
<rdar://problem/112187110>
Pull request: https://github.com/WebKit/WebKit/pull/15815
Committed 266045@main (3b3a755c53e5): <https://commits.webkit.org/266045@main> Reviewed commits have been landed. Closing PR #15815 and removing active labels.