chore: Temporarily remove embedding env vars for code graph action (#647)

<!-- .github/pull_request_template.md -->

## Description
Temporarily remove embedding env variables for code graph action so the
action can run

## 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

- **Chores**
- Removed legacy secret configuration from the testing workflow to
streamline the CI process and enhance maintainability.
- **Improvements**
  - Updated the argument name in the code graph pipeline for clarity.
- Enhanced the handling of results in the example script to support
asynchronous processing.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.github/workflows/test_code_graph_example.yml

@@ -19,9 +19,5 @@ jobs:
       secrets:
         OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
         LLM_API_KEY: ${{ secrets.OPENAI_API_KEY }}
-        EMBEDDING_PROVIDER: "fastembed"
-        EMBEDDING_MODEL: "sentence-transformers/all-MiniLM-L6-v2"
-        EMBEDDING_DIMENSIONS: 384
-        EMBEDDING_MAX_TOKENS: 256
         GRAPHISTRY_USERNAME: ${{ secrets.GRAPHISTRY_USERNAME }}
         GRAPHISTRY_PASSWORD: ${{ secrets.GRAPHISTRY_PASSWORD }}

cognee/api/v1/cognify/code_graph_pipeline.py

@@ -61,7 +61,7 @@ async def run_code_graph_pipeline(repo_path, include_docs=False):
             Task(ingest_data, dataset_name="repo_docs", user=user),
             Task(get_data_list_for_user, dataset_name="repo_docs", user=user),
             Task(classify_documents),
-            Task(extract_chunks_from_documents, max_chunk_tokens=get_max_chunk_tokens()),
+            Task(extract_chunks_from_documents, max_chunk_size=get_max_chunk_tokens()),
             Task(
                 extract_graph_from_data, graph_model=KnowledgeGraph, task_config={"batch_size": 50}
             ),

examples/python/code_graph_example.py

@@ -7,7 +7,11 @@ from cognee.shared.utils import setup_logging
 
 
 async def main(repo_path, include_docs):
-    return await run_code_graph_pipeline(repo_path, include_docs)
+    run_status = False
+    async for run_status in run_code_graph_pipeline(repo_path, include_docs=include_docs):
+        run_status = run_status
+
+    return run_status
 
 
 def parse_args():