Update requirements.txt

requirements.txt

@@ -1,4 +1,4 @@
-streamlit==1.2.0
-langchain==0.2.0
-huggingface_hub==0.1.0
-gitpython==4.0.7
+streamlit==1.15.2
+langchain==0.0.142
+huggingface-hub==0.11.1
+GitPython==3.1.29