Update actions/checkout workflow version

.github/workflows/go.yml

@@ -2,30 +2,29 @@ name: Go
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 
 jobs:
-
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.4.0
 
-    - name: Set up Go
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.17
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.17
 
-    - name: FmtCheck
-      run: scripts/gofmtcheck.sh
+      - name: FmtCheck
+        run: scripts/gofmtcheck.sh
 
-    - name: ErrCheck
-      run: scripts/errcheck.sh
+      - name: ErrCheck
+        run: scripts/errcheck.sh
 
-    - name: Build
-      run: go build -v ./...
+      - name: Build
+        run: go build -v ./...
 
-    - name: Test
-      run: go test -v ./...
+      - name: Test
+        run: go test -v ./...