ci: fix permission error at the coverage sticky step (#99)

Author: hgiasac

.github/workflows/test.yml

@@ -14,6 +14,7 @@ jobs:
   test-go:
     name: Run Go lint and unit tests
     runs-on: ubuntu-20.04
+    permissions: write-all
     steps:
       - name: Checkout
         uses: actions/checkout@v3