build: Bump django from 4.2.18 to 4.2.21 (#141)

Bumps [django](https://github.com/django/django) from 4.2.18 to 4.2.21.
- [Commits](django/django@4.2.18...4.2.21)

---
updated-dependencies:
- dependency-name: django
  dependency-version: 4.2.21
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements.txt

@@ -16,7 +16,7 @@ click==8.1.3
     # via pip-tools
 distlib==0.3.9
     # via virtualenv
-django==4.2.18
+django==4.2.21
     # via -r requirements.in
 filelock==3.16.1
     # via virtualenv