Update requirements.txt

requirements.txt

@@ -4,8 +4,10 @@ keras==2.12.0                     # Specified version
 streamlit==1.18.0
 PyPDF2==1.21.0
 langchain==0.3.4
-langchain_google_genai==0.6.10
+langchain_google_genai==2.0.1  # Updated to the latest available version
 langchain_community==0.3.3
-HuggingFaceEmbeddings==0.0.1  # Hypothetical version; please check the actual version if needed
+HuggingFaceEmbeddings==0.0.1  # Adjust this version if necessary
 google-generativeai==0.8.3
 tensorflow==2.12.0
+python-dotenv==1.0.0
+