Create bicep audit workflow

.github/workflows/bicep-audit.yml

@@ -0,0 +1,35 @@
+name: Validate AZD template
+on:
+  push:
+    branches:
+    - main
+    paths:
+    - "infra/**"
+  pull_request:
+    branches:
+    - main
+    paths:
+    - "infra/**"
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Run Microsoft Security DevOps Analysis
+      uses: microsoft/security-devops-action@preview
+      id: msdo
+      continue-on-error: true
+      with:
+        tools: templateanalyzer
+
+    - name: Upload alerts to Security tab
+      uses: github/codeql-action/upload-sarif@v3
+      if: github.repository_owner == 'Azure-Samples'
+      with:
+        sarif_file: ${{ steps.msdo.outputs.sarifFile }}