software/django-dev: Update Django version

software/django-dev/software.cfg

 [buildout]
 extends =
-        ../../stack/slapos.cfg
-        ../../component/macros/virtual-env.cfg
+  ../../stack/slapos.cfg
+  ../../component/macros/virtual-env.cfg
 
 parts =
-        django-env
+  django-env
 
 [django-env]
 <= virtual-env-base
@@ -15,8 +15,6 @@ eggs = Django
 part = python3
 
 [versions]
-Django = 3.2.12
+Django = 4.0.6
 sqlparse = 0.4.2
-pytz = 2021.3
-asgiref = 3.3.2
-typing-extensions = 4.1.1:whl
+asgiref = 3.5.2