GitHub remotes are case insensative, so our pre-push hook should be case insensative too.
<rdar://problem/107109166>
Pull request: https://github.com/WebKit/WebKit/pull/11837
Committed 276030@main (305fc1b1cf59): <https://commits.webkit.org/276030@main> Reviewed commits have been landed. Closing PR #11837 and removing active labels.