build: add qemu and buildx

Author: reddec

.github/workflows/go.yml

@@ -16,7 +16,11 @@ jobs:
       id: go
     - name: Install deps
       run: sudo apt install -y python3 pandoc
-
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v1
+    - name: Set up Docker Buildx
+      id: buildx
+      uses: docker/setup-buildx-action@v1
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
       with: