Update docker-image.yml

Author: lmangani

.github/workflows/docker-image.yml

@@ -29,7 +29,7 @@ jobs:
     - name: Build and push to GHCR (bun)
       uses: docker/build-push-action@v5.1.0
       with:
-          platforms: linux/amd64
+          platforms: linux/amd64, linux/arm64
           push: true
           tags: |
              ghcr.io/quackscience/copilot-extension-duckdb:latest