Enable Junit reports

With https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/30254 Junit
reports were disabled. With
https://gitlab.com/gitlab-com/gl-infra/production/issues/928 and
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/30274 solved we
should enable them again.

closes https://gitlab.com/gitlab-org/gitlab-ce/issues/64756

.gitlab/ci/frontend.gitlab-ci.yml

@@ -138,9 +138,8 @@ karma:
       - chrome_debug.log
       - coverage-javascript/
       - tmp/tests/frontend/
-# see https://gitlab.com/gitlab-org/gitlab-ce/issues/64756
-#    reports:
-#      junit: junit_karma.xml
+    reports:
+      junit: junit_karma.xml
 jest:
   extends: .dedicated-no-docs-and-no-qa-pull-cache-job
@@ -163,9 +162,8 @@ jest:
       - coverage-frontend/
       - junit_jest.xml
       - tmp/tests/frontend/
-# see https://gitlab.com/gitlab-org/gitlab-ce/issues/64756
-#    reports:
-#      junit: junit_jest.xml
+    reports:
+      junit: junit_jest.xml
   cache:
     key: jest
     paths:

.gitlab/ci/rails.gitlab-ci.yml

@@ -80,9 +80,8 @@
       - rspec_profiling/
       - tmp/capybara/
       - tmp/memory_test/
-# see https://gitlab.com/gitlab-org/gitlab-ce/issues/64756
-#    reports:
-#      junit: junit_rspec.xml
+    reports:
+      junit: junit_rspec.xml
 .rspec-metadata-pg: &rspec-metadata-pg
   <<: *rspec-metadata