add test workflow file

Author: brmur

.github/workflows/pr-eval.yml

@@ -0,0 +1,26 @@
+---
+name: Code Examples PR Review
+
+on:
+  pull_request:
+    types: [opened]
+
+permissions:
+  contents: read
+  pull-requests: write
+  copilot-requests: write
+
+safe-outputs:
+      add-comment   
+
+---
+
+# PR Checklist evaluation
+  
+Review the changes in this PR, and write a comment if the PR includes:
+  
+- Mocks in integration tests.
+- Hard-coded bucket names or regions for AWS resources.
+- Emojis in any code.
+- List operations without proper pagination.
+