Update ANGLE to 2023-09-06 (60b56591dee59bc0bc770577f43d90be4b18863c)
<rdar://problem/115103415>
Pull request: https://github.com/WebKit/WebKit/pull/17534
Committed 267722@main (2e9a385d818b): <https://commits.webkit.org/267722@main> Reviewed commits have been landed. Closing PR #17534 and removing active labels.