Add explicit permissions to GitHub Actions workflow

Co-authored-by: Wytamma <13726005+Wytamma@users.noreply.github.com>

Author: Copilot

.github/workflows/build-deploy.yml

@@ -8,6 +8,8 @@ on:
 jobs:
   build-and-deploy:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
 
     steps:
     - name: Checkout source branch