Update actions/setup-go requirement to v2.1.0

Updates the requirements on [actions/setup-go](https://github.com/actions/setup-go) to permit the latest version.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](1616116e1b)

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/acctest.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
 
     - name: Set up Go
-      uses: actions/setup-go@v1
+      uses: actions/setup-go@v2.1.0
       with:
         go-version: 1.14
       id: go
@@ -52,7 +52,7 @@ jobs:
     steps:
 
     - name: Set up Go
-      uses: actions/setup-go@v1
+      uses: actions/setup-go@v2.1.0
       with:
         go-version: 1.14
       id: go

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
         run: git fetch --prune --unshallow
       -
         name: Set up Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v2.1.0
         with:
           go-version: 1.14
       -