Top flaky test: tst_qmltests::WebEngineFavicon::test_faviconLoad on MacOS_13 ARM64.

Test case: tst_qmltests::WebEngineFavicon::test_faviconLoad has failed on MacOS_13 ARM64 Clang
The test failed 4 times and was flaky 4 times last week.

Coin log excerpt from failed run:
agent:2024/04/20 19:04:46 build.go:404: 19: FAIL! : qmltests::WebEngineFavicon::test_faviconLoad(non-OTR) 'wait for signal iconChanged' returned FALSE. ()
agent:2024/04/20 19:04:46 build.go:404: 19: Loc: [/Users/qt/work/qt/qtwebengine/tests/auto/quick/qmltests/data/tst_favicon.qml(71)]
agent:2024/04/20 19:04:46 build.go:404: 19: Path override failed for key base::DIR_APP_DICTIONARIES and path '/Users/qt/work/install/lib/QtWebEngineCore.framework/Versions/A/Helpers/QtWebEngineProcess.app/Contents/MacOS/qtwebengine_dictionaries'
...

Full log at : coin log
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