Update Go setup for GitHub Actions workflows (#444)

.github/workflows/push.yaml

@@ -7,7 +7,6 @@ on:
 
 env:
   DOCKER_FILE_PATH: Dockerfile
-  GOLANG_VERSION: 1.20.3
   KUBERNETES_VERSION: "1.18.0"
   KIND_VERSION: "0.10.0"
   HELM_REGISTRY_URL: "https://stakater.github.io/stakater-charts"
@@ -31,10 +30,11 @@ jobs:
         uses: azure/setup-helm@v3
 
       - name: Set up Go
-        id: go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
-          go-version: ${{ env.GOLANG_VERSION }}
+          go-version-file: 'go.mod'
+          check-latest: true
+          cache: true
 
       - name: Install Dependencies
         run: |