Add snyk scan

.github/workflows/snyk_scan.yml

@@ -0,0 +1,38 @@
+name: Scan dotNET using Snyk
+
+on:
+  push:
+    branches: [ main ]
+    paths-ignore:
+      - .gitignore
+      - README.md
+      - LICENSE
+      - '.github/**'
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ main ]
+
+jobs:
+  security:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4.0.0
+
+      - name: Restore dependencies
+        run: dotnet restore Tanzy.Xunit.sln
+
+      - name: Run Snyk to check for vulnerabilities
+        uses: snyk/actions/dotnet@master
+        continue-on-error: true # To make sure that SARIF upload gets called
+        env:
+          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
+        with:
+          args: --sarif-file-output=snyk.sarif --file=Tanzy.Xunit.sln
+
+      - name: Upload result to GitHub Code Scanning
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: snyk.sarif