Remove PR comment permissions

- Remove pull-requests: write permission
- Coverage report will only show in GitHub Actions Summary
- Avoids permission issues when forking to upstream repos

Author: Dias, Diego

.github/workflows/test-coverage.yml

@@ -11,9 +11,6 @@ on:
 jobs:
   test-coverage:
     runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      pull-requests: write
 
     steps:
       - name: Checkout code