[iOS] Skip tests that cause crashes due to unfired UI script callbacks, as identified in https://bugs.webkit.org/show_bug.cgi?id=236794
Pull request: https://github.com/WebKit/WebKit/pull/1334
Test gardening commit r295300 (251345@main): <https://commits.webkit.org/251345@main> Reviewed commits have been landed. Closing PR #1334 and removing active labels.
<rdar://problem/95058021>