[Gardening]: NEW TEST (270000@main): [ macOS ] http/tests/webgpu/webg…

…pu/api/operation/adapter/requestAdapterInfo.html is a constant failure

https://bugs.webkit.org/show_bug.cgi?id=264165
rdar://117912370

Unreviewed test gardening.

Adding test expectation

* LayoutTests/platform/mac/TestExpectations:

Canonical link: https://commits.webkit.org/270189@main

LayoutTests/platform/mac/TestExpectations

@@ -2619,3 +2619,5 @@ webkit.org/b/264001 [ Debug ] imported/w3c/web-platform-tests/requestidlecallbac
 [ Sonoma+ ] scrollbars/overflow-scrollbar-combinations.html [ Pass ImageOnlyFailure Failure ]
 [ Sonoma+ ] svg/custom/svg-fonts-in-html.html [ Pass ImageOnlyFailure Failure ]
 [ Sonoma+ ] tables/mozilla/bugs/bug2479-2.html [ Pass ImageOnlyFailure Failure ]
+
+webkit.org/b/264165 http/tests/webgpu/webgpu/api/operation/adapter/requestAdapterInfo.html [ Failure ]