fix(ci): Support ARM builds (dragonflydb#126)

* fix(ci): Support ARM builds

* use sha with CI

* unnecessary change

* unnecessary change

* QEMU and buildx

* load image locally

* push instead of load

* build only amd for CI

* unnecessary change

.github/workflows/ci.yml

@@ -60,20 +60,29 @@ jobs:
         run: |
           make build
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Login to Github container repository
-        uses: docker/login-action@v1
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and Publish image into GHCR
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v5
         with:
           context: .
           file: ./Dockerfile
           push: true
           tags: ghcr.io/dragonflydb/operator:${{ github.ref_name }}
+          platforms: |
+            linux/amd64
+            linux/arm64
         env:
           DOCKER_BUILDKIT: 1
           DOCKER_USERNAME: ${{ github.actor }}