pip stable: bump django from 5.0.8 to 5.1

Bumps [django](https://github.com/django/django) from 5.0.8 to 5.1.
- [Commits](django/django@5.0.8...5.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -6,7 +6,7 @@ lxml==5.2.2
 openpyxl==3.1.5
 
 # website
-django==5.0.8 ; python_version >= '3.10'
+django==5.1 ; python_version >= '3.10'
 django==4.2.5 ; python_version < '3.10'
 
 # compatibility