fix: use GHCR_TOKEN secret for container registry push

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

Author: Jing-yilin

.github/workflows/build-image.yml

@@ -29,7 +29,7 @@ jobs:
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          password: ${{ secrets.GHCR_TOKEN }}
 
       - uses: docker/build-push-action@v6
         with: