update go test in ci

Author: jpillora

.github/workflows/ci.yml

@@ -10,12 +10,12 @@ jobs:
     name: Test
     strategy:
       matrix:
-        go-version: [1.13.x, 1.14.x, 1.15.x]
+        go-version: [1.13.x, 1.14.x, 1.15.x, 1.16.x]
         platform: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Install Go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v2.1.3
         with:
           go-version: ${{ matrix.go-version }}
       - name: Checkout code