Add rules for rerun jobs

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

@@ -889,6 +889,7 @@ fail-pipeline-early:
 rspec rspec-pg12-rerun-previous-failed-tests:
   extends:
     - .rspec-base-pg12
+    - .rails:rules:rerun-previous-failed-tests
   stage: test
   needs: ["setup-test-env", "compile-test-assets", "detect-previous-failed-tests"]
   script:

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

@@ -1204,6 +1204,12 @@
     - <<: *if-merge-request
       changes: *code-backstage-patterns
 
+.rails:rules:rerun-previous-failed-tests:
+  rules:
+    - <<: *if-merge-request-labels-run-all-rspec
+    - <<: *if-merge-request
+      changes: *code-backstage-patterns
+
 .rails:rules:rspec-foss-impact:
   rules:
     - <<: *if-not-ee