Update requirements.txt

requirements.txt

@@ -2,14 +2,17 @@ langchain==0.3.3
 langchain-community==0.3.2
 langchain-core==0.3.10
 langchain-openai==0.2.0
-openai==1.45.0
+openai==1.55.3
 pypdf==4.3.1
 pytest==8.2.2
 nltk==3.9.1
 transformers==4.44.0
 torch==2.4.0
 accelerate==1.1.1
-sentence-transformers==3.3.0
 RapidFuzz==3.10.1
-httpx==0.27.2
+sentence-transformers==3.3.0
+sentencepiece==0.2.0
+protobuf==5.29.3
+bitsandbytes==0.45.0
+vllm==0.6.0
 gradio==4.44.0