[BRE-848] Adding Workflow Permissions (#798)

.github/workflows/enforce-labels.yml

@@ -3,6 +3,9 @@ name: Enforce PR labels
 on:
   pull_request:
     types: [labeled, unlabeled, opened, edited, synchronize]
+permissions:
+  contents: read
+  pull-requests: read
 jobs:
   enforce-label:
     name: EnforceLabel