chore: lint requirements

Author: lpm0073

api/terraform/python/layer_genai/requirements.txt

@@ -7,11 +7,14 @@
 #             named `venv`. Terraform modules will look for and include these
 #             requirements in the zip package for this layer.
 # -----------------------------------------------------------------------------
-python-dotenv==1.0.0
-openai==1.6.1
+
+# generative AI requirements
 langchain
 langchain-experimental
+openai==1.6.1
 pinecone-client==2.2.4
+
+# general requirements
 pydantic==2.5.3
 pydantic-settings==2.1.0
 python-dotenv==1.0.0