Update go.yml

.github/workflows/go.yml

@@ -6,21 +6,17 @@ jobs:
     name: Build
     runs-on: ubuntu-16.04
     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: Get dependencies
       run: |
         export GO111MODULE=on
         export GOPROXY=https://goproxy.cn
         go mod vendor
-
     - name: Build
       run: go build -v .