Add Trivy scanning (#219)

* Add Trivy scanning

* Update severity

* fix: Upload scan results to security tab

Author: ruivieira

.github/workflows/security.yaml

@@ -0,0 +1,31 @@
+name: Security
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-20.04
+    permissions:
+      contents: read
+      security-events: write
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Trivy scan
+        uses: aquasecurity/[email protected]
+        with:
+          scan-type: 'fs'
+          format: 'sarif'
+          output: 'trivy-results.sarif'
+          severity: 'MEDIUM,HIGH,CRITICAL'
+          exit-code: '0'
+          ignore-unfixed: false
+
+      - name: Update Security tab
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: 'trivy-results.sarif'