fix: add minimal GITHUB_TOKEN permissions to address CodeQL warning

Author: mcollins-ttd

.github/workflows/check-stable-dependency.yaml

@@ -1,7 +1,10 @@
 name: Check Stable Dependencies 
 on: [pull_request, workflow_dispatch]
 
+permissions:
+  contents: read
+
 jobs:
   check_dependency:
     uses: IABTechLab/uid2-shared-actions/.github/workflows/shared-check-stable-dependency.yaml@v3
-    secrets: inherit
+    secrets: inherit