Add InstallableManagerBrowserTest.CheckFavicon to browser_tests.filter to disable this flaky upstream test. The test intermittently fails due to favicon fetch timing issues. Already disabled on Mac upstream (crbug.com/333331507). Also add ASAN filter support to getApplicableFilters() in testUtils.js, which was missing (only UBSAN and MSAN were supported). Resolves https://github.com/brave/brave-browser/issues/52659