Disable flaky tests: settingsAddonsItemsTest, verifyAboutFirefoxPreview (#13286)

* fix: disable intermittent failing UI tests

* fix: add dependency

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

@@ -10,6 +10,7 @@ import okhttp3.mockwebserver.MockWebServer
 import org.junit.Rule
 import org.junit.Before
 import org.junit.After
+import org.junit.Ignore
 import org.junit.Test
 import org.mozilla.fenix.helpers.AndroidAssetDispatcher
 import org.mozilla.fenix.helpers.HomeActivityIntentTestRule
@@ -68,7 +69,7 @@ class SettingsAboutTest {
         }
 
     }
-
+    @Ignore("Failing, see: https://github.com/mozilla-mobile/fenix/issues/13219")
     @Test
     fun verifyAboutFirefoxPreview() {
         homeScreen {

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

@@ -44,6 +44,7 @@ class SettingsAddonsTest {
     }
 
     // Walks through settings add-ons menu to ensure all items are present
+    @Ignore("Failing, see: https://github.com/mozilla-mobile/fenix/issues/13218")
     @Test
     fun settingsAddonsItemsTest() {
         homeScreen {