Add Snyk GitHub Action workflow for vulnerability scanning

Author: mhmansoo

.github/workflows/snyk.yml

@@ -0,0 +1,29 @@
+name: Snyk Vulnerability Scan
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  snyk:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run Snyk security scan
+        uses: snyk/actions/node@master
+        env:
+          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
+        with:
+          args: test --severity-threshold=high