upgrade flask to 2.3.2 and replace g.user with current_user

cmdb-api/autoapp.py

@@ -1,14 +1,7 @@
 # -*- coding: utf-8 -*-
 
 """Create an application instance."""
-from flask import g
-from flask_login import current_user
 
 from api.app import create_app
 
 app = create_app()
-
-
-@app.before_request
-def before_request():
-    g.user = current_user