add linter to github actions

.github/workflows/build.yaml

@@ -111,24 +111,43 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
+
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
           go-version: ${{ env.GO_VERSION }}
+
+      - name: Lint
+        id: lint
+        uses: golangci/golangci-lint-action@v6.1.1
+        with:
+          version: v1.61
+          args: --verbose --out-format=line-number
+        if: matrix.operating-system == 'ubuntu-latest'
+
+      - name: Check if linter failed
+        run: |
+          echo "Linter failed, running 'mage lint:fix' might help to correct some errors"
+          exit 1
+        if: ${{ failure() && steps.lint.conclusion == 'failure' }}
+
       - name: Install tools
         uses: aquaproj/aqua-installer@v3.1.0
         with:
           aqua_version: v1.25.0
+
       - name: Setup Kubernetes cluster (KIND)
         uses: engineerd/setup-kind@v0.6.2
         with:
           version: ${{ env.KIND_VERSION }}
           image: ${{ env.KIND_IMAGE }}
+
       - name: Test connection to Kubernetes cluster
         run: |
           kubectl cluster-info
           kubectl wait --for=condition=Ready nodes --all --timeout=300s
           kubectl describe node
+
       - name: Run integration tests
         run: |
           kubectl create -k deploy/static
@@ -137,10 +156,12 @@ jobs:
           KUBECONFIG: /home/runner/.kube/config
           OPERATOR_NAMESPACE: trivy-system
           OPERATOR_TARGET_NAMESPACES: default
+
       - name: Upload code coverage
         uses: codecov/codecov-action@v5
         with:
           files: ./itest/trivy-operator/coverage.txt
+
   e2e-testing:
     name: Run end to end testing
     needs: