Bump django from 3.2.25 to 5.1.7

Bumps [django](https://github.com/django/django) from 3.2.25 to 5.1.7.
- [Commits](django/django@3.2.25...5.1.7)

---
updated-dependencies:
- dependency-name: django
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements/docs.txt

@@ -7,7 +7,7 @@ m2r
 sphinx-notfound-page
 
 # for extracting model docs
-django==3.2.25
+django==5.1.7
 djangorestframework==3.14.0
 django-mptt==0.16.0
 rsa==3.4.2

setup.py

@@ -23,7 +23,7 @@
                  'morango'},
     include_package_data=True,
     install_requires=[
-        "django>=3,<4",
+        "django>=3,<6",
         "django-mptt>0.10.0",
         "rsa<4.10",
         "djangorestframework>3.10",