CI: Update action

.github/workflows/vulnerabilty-scan.yml

@@ -0,0 +1,20 @@
+name: Scan
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@master
+        with:
+          image-ref: 'ghcr.io/bbusse/gtfso-import'
+          format: 'sarif'
+          output: 'trivy-results.sarif'