updated version in test workflow file

Author: himanshu219

.github/workflows/unittest.yml

@@ -18,29 +18,29 @@ jobs:
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup Go environment
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v5
 
       - name: Checking compilation errors while generating image
         run: env GOOS=linux go build -o "sumologic-extension" "lambda-extensions/sumologic-extension.go"
 
   test:
     strategy:
       matrix:
-        go-version: [1.21.x, 1.22.x]
+        go: ['1.21', '1.22']
         os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
 
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Setup Go (version - ${{ matrix.go }})
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.go }}
 
-      - name: Checkout code
-        uses: actions/checkout@v2
-
       - name: Run Unit Tests
         run: go test  ./...