Update pull_request.yml

Added Trivy scanning

Author: cin

.github/workflows/pull_request.yml

@@ -29,3 +29,17 @@ jobs:
 
       - name: Go Build amd64
         run: CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o kubectl-parallel-exec-amd64
+
+      - name: Run Trivy vulnerability scanner in repo mode
+        uses: aquasecurity/trivy-action@master
+        with:
+          scan-type: 'fs'
+          ignore-unfixed: true
+          format: 'sarif'
+          output: 'trivy-results.sarif'
+          severity: 'CRITICAL'
+
+      - name: Upload Trivy scan results to GitHub Security tab
+        uses: github/codeql-action/upload-sarif@v2
+        with:
+          sarif_file: 'trivy-results.sarif'