ci(fix): allow coverage action to post to PR

Author: mfacchinelli

.github/workflows/test.yml

@@ -9,6 +9,12 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
   cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
+# "write" access for checks/pull-request needed by 5monkeys/cobertura-action to
+# post coverage stats in PR comments.
+permissions:
+  checks: write
+  pull-requests: write
+
 jobs:
   qa:
     runs-on: ubuntu-latest