For #24978 re-enable audioPlaybackSystemNotificationTest UI test

app/src/androidTest/java/org/mozilla/fenix/ui/SmokeTest.kt

@@ -36,8 +36,8 @@ import org.mozilla.fenix.helpers.TestHelper.appName
 import org.mozilla.fenix.helpers.TestHelper.assertNativeAppOpens
 import org.mozilla.fenix.helpers.TestHelper.createCustomTabIntent
 import org.mozilla.fenix.helpers.TestHelper.generateRandomString
-import org.mozilla.fenix.helpers.TestHelper.scrollToElementByText
 import org.mozilla.fenix.helpers.TestHelper.registerAndCleanupIdlingResources
+import org.mozilla.fenix.helpers.TestHelper.scrollToElementByText
 import org.mozilla.fenix.helpers.ViewVisibilityIdlingResource
 import org.mozilla.fenix.ui.robots.browserScreen
 import org.mozilla.fenix.ui.robots.customTabScreen
@@ -815,7 +815,6 @@ class SmokeTest {
         }
     }
 
-    @Ignore("Failing with frequent ANR: https://bugzilla.mozilla.org/show_bug.cgi?id=1764605")
     @Test
     fun audioPlaybackSystemNotificationTest() {
         val audioTestPage = TestAssetHelper.getAudioPageAsset(mockWebServer)