GraphRAG vs RAG notebook (#503)

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## Description
GraphRAG vs RAG cognee notebook

## DCO Affirmation
I affirm that all code in every commit of this pull request conforms to
the terms of the Topoteretes Developer Certificate of Origin


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Tests**
- Implemented automated validations to continuously monitor and ensure
the reliability of our interactive notebook features. These improvements
enhance overall stability and performance, enabling a more consistent
and dependable user experience.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Boris <boris@topoteretes.com>

.github/workflows/test_graphrag_vs_rag_notebook.yml

@@ -0,0 +1,25 @@
+name: test | graphrag vs rag notebook
+
+on:
+  workflow_dispatch:
+  pull_request:
+    types: [labeled, synchronize]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  run_notebook_test:
+      uses: ./.github/workflows/reusable_notebook.yml
+      with:
+        notebook-location: notebooks/graphrag_vs_rag.ipynb
+      secrets:
+        LLM_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+        EMBEDDING_MODEL: ${{ secrets.EMBEDDING_MODEL }}
+        EMBEDDING_ENDPOINT: ${{ secrets.EMBEDDING_ENDPOINT }}
+        EMBEDDING_API_KEY: ${{ secrets.EMBEDDING_API_KEY }}
+        EMBEDDING_API_VERSION: ${{ secrets.EMBEDDING_API_VERSION }}
+        GRAPHISTRY_USERNAME: ${{ secrets.GRAPHISTRY_USERNAME }}
+        GRAPHISTRY_PASSWORD: ${{ secrets.GRAPHISTRY_PASSWORD }}