Run coverage on 2-hour scheduled pipelines only

Signed-off-by: Rémy Coutable <remy@rymai.me>

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

@@ -224,7 +224,7 @@ gitlab:setup:
 rspec:coverage:
   extends:
     - .rails-job-base
-    - .rails:rules:ee-mr-and-master-only
+    - .rails:rules:rspec-coverage
   stage: post-test
   # We cannot use needs since it would mean needing 84 jobs (since most are parallelized)
   # so we use `dependencies` here.

.gitlab/ci/rules.gitlab-ci.yml

@@ -389,9 +389,7 @@
   rules:
     - <<: *if-not-ee
       when: never
-    - <<: *if-dot-com-gitlab-org-master
-      changes: *code-backstage-qa-patterns
-      when: on_success
+    - <<: *if-master-schedule-2-hourly
 
 ############
 # QA rules #
@@ -544,6 +542,12 @@
     - <<: *if-merge-request
       changes: *code-backstage-patterns
 
+.rails:rules:rspec-coverage:
+  rules:
+    - <<: *if-not-ee
+      when: never
+    - <<: *if-master-schedule-2-hourly
+
 ##################
 # Releases rules #
 ##################