[Gardening]: REGRESSION (274818@main): [ Sonoma+ ] tables/mozilla/bug…

…s/bug2479-2.html is a consistent failure - failed in EWS

https://bugs.webkit.org/show_bug.cgi?id=269619
rdar://123119732

Unreviewed test gardening.

Adding test expectation

* LayoutTests/platform/mac/TestExpectations:

Canonical link: https://commits.webkit.org/274899@main

LayoutTests/platform/mac/TestExpectations

@@ -2584,3 +2584,5 @@ imported/w3c/web-platform-tests/svg/painting/reftests/percentage-attribute.svg [
 imported/w3c/web-platform-tests/svg/painting/reftests/percentage.svg [ ImageOnlyFailure ]
 
 webkit.org/b/269598 [ Debug ] workers/wasm-hashset.html [ Skip ]
+
+webkit.org/b/269619 [ Sonoma+ ] tables/mozilla/bugs/bug2479-2.html [ Failure ]