fix(brain): pass missing run_id (#3631)

# Description

Please include a summary of the changes and the related issue. Please
also include relevant motivation and context.

## Checklist before requesting a review

Please delete options that are not relevant.

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented hard-to-understand areas
- [ ] I have ideally added tests that prove my fix is effective or that
my feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged

## Screenshots (if appropriate):

Author: m-thenot

core/quivr_core/brain/brain.py

@@ -496,6 +496,7 @@ def add_file(self) -> None:
     async def ask_streaming(
         self,
         question: str,
+        run_id: UUID,
         system_prompt: str | None = None,
         retrieval_config: RetrievalConfig | None = None,
         rag_pipeline: Type[Union[QuivrQARAG, QuivrQARAGLangGraph]] | None = None,
@@ -542,6 +543,7 @@ async def ask_streaming(
             "langfuse_session_id": str(self.chat_id),
         }
         async for response in rag_instance.answer_astream(
+            run_id=run_id,
             question=question,
             system_prompt=system_prompt or None,
             history=chat_history,
@@ -585,6 +587,7 @@ async def aask(
         full_answer = ""
 
         async for response in self.ask_streaming(
+            run_id=run_id,
             question=question,
             system_prompt=system_prompt,
             retrieval_config=retrieval_config,