Update go.yml

Author: tamalsaha

.github/workflows/go.yml

@@ -7,14 +7,21 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-    - name: Set up Go 1.12
-      uses: actions/setup-go@v1
-      with:
-        go-version: 1.12
-      id: go
-
     - name: Check out code into the Go module directory
       uses: actions/checkout@v1
 
+    - name: Set up Docker Buildx
+      id: buildx
+      uses: crazy-max/ghaction-docker-buildx@master
+      with:
+        version: latest
+
+    - name: Available platforms
+      run: echo ${{ steps.buildx.outputs.platforms }}
+
     - name: Build
-      run: make ci
+      env:
+        DOCKER_TOKEN: ${{ secrets.DOCKER_TOKEN }}
+      run: |
+        docker login docker.pkg.github.com --username stashed --password ${DOCKER_TOKEN}
+        make push REGISTRY=docker.pkg.github.com/stashed/stash