Add SYS_quotactl to the WebContent process' sandbox on macOS. It is only required during launch, and will be blocked post launch.
Pull request: https://github.com/WebKit/WebKit/pull/1969
Committed 252054@main (cbded7d28342): <https://commits.webkit.org/252054@main> Reviewed commits have been landed. Closing PR #1969 and removing active labels.
<rdar://problem/96303486>