Use new coverage_report keyword in CI config

(cherry picked from commit d36f61ef)

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

@@ -280,7 +280,9 @@ coverage-frontend:
     paths:
       - coverage-frontend/
     reports:
-      cobertura: coverage-frontend/cobertura-coverage.xml
+      coverage_report:
+        coverage_format: cobertura
+        path: coverage-frontend/cobertura-coverage.xml
 .qa-frontend-node:
   extends:

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

@@ -598,7 +598,9 @@ rspec:coverage:
       - coverage/assets/
       - coverage/lcov/
     reports:
-      cobertura: coverage/coverage.xml
+      coverage_report:
+        coverage_format: cobertura
+        path: coverage/coverage.xml
 rspec:undercoverage:
   extends: