Build multi-arch GHCR images

Author: rsousa88

.github/workflows/ci.yml

@@ -77,6 +77,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -98,6 +101,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
+          platforms: linux/amd64,linux/arm64
           push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
           tags: |
             ghcr.io/${{ github.repository }}:${{ steps.version.outputs.version }}