Deprecating set-env and add-path commands. close qiangxue#17

Author: jxlwqq

.github/workflows/build.yml

@@ -27,8 +27,8 @@ jobs:
 
       - name: Set up path
         run: |
-          echo "::set-env name=GOPATH::$(go env GOPATH)"
-          echo "::add-path::$(go env GOPATH)/bin"
+          echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
+          echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
         shell: bash
 
       - name: Check out code into the Go module directory