Update action

.gitea/workflows/demo.yaml

@@ -20,10 +20,17 @@ jobs:
       - name: Check out repository code
         uses: actions/checkout@v6
 
+      - name: Golang linter
+        uses: actions/golangci-lint-action
+
       - name: Build and test application
+        env:
+          GOOS: linux
+          GOARCH: amd64
+          CGO_ENABLED: 0
         run: |
           mkdir bin
-          GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -o ./bin/metrics ./cmd
+          go build -o ./bin/metrics ./cmd
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3