[Gardening]: REGRESSION (270354@main?): [ macOS Release x86_64 wk2 ] …

…media/media-source/mock-managedmse-bufferedchange.html is a flaky crash

https://bugs.webkit.org/show_bug.cgi?id=265549
rdar://118951399

Unreviewed test gardening.

Adding test expectation

* LayoutTests/platform/wk2/TestExpectations:

Canonical link: https://commits.webkit.org/271302@main

LayoutTests/platform/wk2/TestExpectations

@@ -882,3 +882,5 @@ webkit.org/b/262088 [ Debug ] imported/w3c/web-platform-tests/fetch/private-netw
 webkit.org/b/262157 imported/w3c/web-platform-tests/css/css-contain/content-visibility/content-visibility-video.html [ Pass ImageOnlyFailure Crash ]
 
 webkit.org/b/261314 [ Debug ] fast/mediastream/captureStream/canvas3d.html [ Pass Failure ]
+
+webkit.org/b/265549 media/media-source/mock-managedmse-bufferedchange.html [ Pass Crash ]