Enable arm64 build

Author: nbudin

.github/workflows/ci.yml

@@ -55,6 +55,8 @@ jobs:
       - uses: actions/checkout@v3
       - name: Log in to registry
         run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@master
@@ -66,7 +68,7 @@ jobs:
         with:
           context: .
           push: ${{ github.event_name == 'push' && github.event.ref == 'refs/heads/main' }}
-          platforms: linux/amd64
+          platforms: linux/amd64,linux/arm64
           tags: |
             ghcr.io/${{ github.repository }}:${{ github.sha }}
           build-args: |