Re-generate the requirement file with Python 3.9

Author: greyli

requirements.txt

@@ -1,12 +1,12 @@
 #
-# This file is autogenerated by pip-compile with Python 3.13
+# This file is autogenerated by pip-compile with Python 3.9
 # by the following command:
 #
 #    pip-compile requirements.in
 #
 blinker==1.9.0
     # via flask
-click==8.2.1
+click==8.1.8
     # via flask
 coverage==7.10.3
     # via -r requirements.in
@@ -19,6 +19,8 @@ flask-login==0.6.3
     # via -r requirements.in
 flask-sqlalchemy==3.1.1
     # via -r requirements.in
+importlib-metadata==8.7.0
+    # via flask
 itsdangerous==2.2.0
     # via flask
 jinja2==3.1.6
@@ -38,3 +40,5 @@ werkzeug==3.1.3
     # via
     #   flask
     #   flask-login
+zipp==3.23.0
+    # via importlib-metadata