Bump django from 4.2.14 to 4.2.15

Bumps [django](https://github.com/django/django) from 4.2.14 to 4.2.15.
- [Commits](django/django@4.2.14...4.2.15)

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

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

requirements.txt

@@ -11,7 +11,7 @@ django-environ==0.11.2
 django-field-history==0.8.0
 django-invitations==2.1.0
 django-notifications-hq==1.8.3
-Django==4.2.14
+Django==4.2.15
 python-slugify==8.0.4
 qrcode==7.4.2
 tldextract==5.1.2