chore: add multi arch setup

Author: lakhansamani

.github/workflows/release.yaml

@@ -30,6 +30,10 @@ jobs:
         # https://github.com/docker/setup-qemu-action
         name: Set up QEMU
         uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+        with:
+          platforms: linux/amd64,linux/arm64
       - uses: actions/setup-go@v2
         with:
           go-version: "^1.17.3"