Update Dockerfile

Dockerfile

@@ -15,6 +15,7 @@ COPY --from=embed_source /app /app/embed_service/app
 COPY --from=rag_source /app /app/rag_service/app
 
 # Install all dependencies at once
+RUN pip install --upgrade pip
 RUN pip install --no-cache-dir \
     fastapi uvicorn requests pinecone-client sentence-transformers flask supervisor jinja2 python-multipart python-dotenv markdown markdown2 langsmith aiohttp fastapi uvicorn[standard] python-multipart jinja2 markdown python-dotenv aiohttp cachetools numpy pymongo redis pinecone[grpc] pinecone-text protobuf langchain langchain-core langchain-community langchain-huggingface langchain-text-splitters langsmith pypdf pymupdf transformers langchain_nvidia_ai_endpoints