Update requirements.txt

requirements.txt

@@ -1,5 +1,5 @@
 # local-rag-example
-python         # == 3.9              # ">=3.9,<3.9.7 || >3.9.7,<3.12"
+# python         # == 3.9              # ">=3.9,<3.9.7 || >3.9.7,<3.12"
 langchain      >= 0.0.343
 streamlit-chat >= 0.1.1
 pypdf          >= 3.17.1