Add explicit permissions to GitHub Action workflow

Co-authored-by: ckenst <6896787+ckenst@users.noreply.github.com>

Author: Copilot

.github/workflows/sync-version.yml

@@ -12,6 +12,8 @@ on:
 jobs:
   sync-version:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     steps:
       - name: Checkout
         uses: actions/checkout@v4