Update tests.yml

Author: staabm

.github/workflows/tests.yml

@@ -201,7 +201,7 @@ jobs:
   mutation-testing:
     name: "Mutation Testing"
     runs-on: "ubuntu-latest"
-    #needs: ["tests"]
+    needs: ["tests"]
     if: github.event_name == 'pull_request'
 
     strategy: