[WIP] Update pinning of Django version to 5.2.11 (#2884)

* Initial plan

* Pin Django to version 5.2.11

Co-authored-by: JacobCoffee <45884264+JacobCoffee@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: JacobCoffee <45884264+JacobCoffee@users.noreply.github.com>

Author: Copilot

base-requirements.txt

@@ -4,7 +4,7 @@ django-sitetree==1.18.0  # >=1.17.1 is (?) first version that supports Django 4.
 django-apptemplates==1.5
 django-admin-interface==0.28.9
 django-translation-aliases==0.1.0
-Django==5.2
+Django==5.2.11
 docutils==0.21.2
 Markdown==3.7
 cmarkgfm==2024.11.20