Add CloudFormation Guard (GitHub Actions)

.github/workflows/cfn-guard.yml

@@ -0,0 +1,22 @@
+name: CloudFormation Guard Action
+
+on:
+  push:
+    paths:
+      - 'cloudformation/**'
+
+jobs:
+  cfn-guard:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - uses: grolston/guard-action@main
+      with:
+        data_directory: './cloudformation/'
+        rule_set: "wa-Reliability-Pillar"
+
+    - uses: grolston/guard-action@main
+      with:
+        data_directory: './cloudformation/'
+        rule_set: "wa-Security-Pillar"