Merge pull request fatih#116 from fatih/fatih/update-actions

Use the vendor folder explicitly

Author: fatih

.github/workflows/go.yml

@@ -14,12 +14,12 @@ jobs:
       id: go
 
     - name: Check out code into the Go module directory
-      uses: actions/checkout@v1
+      uses: actions/checkout@v2
 
     - name: Test
       run: |
         go mod tidy -v
-        go test -race ./...
+        go test -mod=vendor -race ./...
 
     - name: Build
-      run: go build ./...
+      run: go build -mod=vendor ./...