mailman3-django-contrib-admin-forms.py-CAPTCHA.patch

--- django/contrib/admin/forms.py.orig	2023-12-22 08:20:40.622607168 +0100
+++ django/contrib/admin/forms.py	2023-12-22 08:22:42.322168623 +0100
@@ -2,12 +2,18 @@
 from django.core.exceptions import ValidationError
 from django.utils.translation import gettext_lazy as _
 
+# CAPTCHA support
+from django_multi_captcha_support import multicaptcha
+
 
 class AdminAuthenticationForm(AuthenticationForm):
     """
     A custom authentication form used in the admin app.
     """
 
+    # CAPTCHA support
+    captcha = multicaptcha("adminlogin")
+
     error_messages = {
         **AuthenticationForm.error_messages,
         "invalid_login": _(