Update requirements

requirements.txt

@@ -4,18 +4,20 @@ nltk==3.8.1
 pandas==2.2.2
 streamlit==1.33.0
 xlsxwriter==3.2.0
-openai==1.26.0
 biopython==1.83
-langchain==0.1.13
 pypdf==4.1.0
-tiktoken==0.5.2
+tiktoken==0.7.0
 pillow-heif==0.15.0
 torchvision==0.15.2
 transformers==4.38.2
 python-dotenv==1.0.1
 rapidocr-onnxruntime==1.3.15
-langchain-openai==0.1.6
 img2table==1.2.11
 timm==0.9.16
 python-doctr==0.8.1
-langchain-google-genai==1.0.3
+langchain==0.3.1
+langchain-community==0.3.1
+langchain-core==0.3.6
+langchain-google-genai==2.0.0
+langchain-openai==0.2.1
+langchain-text-splitters==0.3.0