Improve support for required changes for build.webkit.org uat/dev instances. Currently we keep various local changes on uat instance (which are different from production instance as well as from a local testing instance). It's better to integrate them properly and commit them to the repository. Similar to https://bugs.webkit.org/show_bug.cgi?id=235355
<rdar://problem/105793351>
Pull request: https://github.com/WebKit/WebKit/pull/10534
Committed 260701@main (fc24cb6aa35f): <https://commits.webkit.org/260701@main> Reviewed commits have been landed. Closing PR #10534 and removing active labels.