Update requirements .txt

requirements .txt

@@ -1,10 +1,11 @@
-langchain-community==0.3.16
-langchain==0.3.16
-langchain-huggingface==0.1.2
-langchain-text-splitters==0.3.5
-unstructured==0.16.16
-unstructured[pdf]==0.16.16
-langchain-unstructured==0.1.6
-langchain-chroma==0.2.1
-langchain-groq==0.2.3
-streamlit==1.41.1
+langchain-community==0.3.16
+langchain==0.3.16
+langchain-huggingface==0.1.2
+langchain-text-splitters==0.3.5
+unstructured==0.16.16
+unstructured[pdf]==0.16.16
+langchain-unstructured==0.1.6
+langchain-chroma==0.2.1
+langchain-groq==0.2.3
+streamlit==1.41.1
+python-dotenv==1.0.1