ci: fall back to GITHUB_TOKEN when GH_PAT unavailable

Author: hanzo-dev

.github/workflows/deploy.yml

@@ -38,7 +38,7 @@ jobs:
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
-          password: ${{ secrets.GH_PAT }}
+          password: ${{ secrets.GH_PAT || secrets.GITHUB_TOKEN }}
 
       - name: Log in to Docker Hub
         uses: docker/login-action@v3