Mark flaky tests (TNL-3514 and TNL-3515).

common/test/acceptance/tests/lms/test_learner_profile.py

@@ -641,6 +641,7 @@ class OwnLearnerProfilePageTest(LearnerProfileTestMixin, WebAppTest):
         self.assert_default_image_has_public_access(profile_page)
         self.assertFalse(profile_page.remove_link_present)
 
+    @flaky  # TNL-3514
     def test_eventing_after_multiple_uploads(self):
         """
         Scenario: An event is fired when a user with a profile image uploads another image

common/test/acceptance/tests/studio/test_studio_course_team.py

@@ -152,6 +152,7 @@ class CourseTeamPageTest(StudioCourseTest):
 
         self._assert_can_not_manage_users()
 
+    @flaky  # TNL-3515
     def test_admins_can_delete_other_users(self):
         """
         Scenario: Admins can delete other users