dep: update django-silk requirement from ~=5.0.3 to ~=5.0.4

Updates the requirements on [django-silk](https://github.com/jazzband/django-silk) to permit the latest version.
- [Release notes](https://github.com/jazzband/django-silk/releases)
- [Changelog](https://github.com/jazzband/django-silk/blob/master/CHANGELOG.md)
- [Commits](jazzband/django-silk@5.0.3...5.0.4)

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

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

Pipfile

@@ -15,7 +15,7 @@ django-exclusivebooleanfield = "~=0.3.0"
 django-widget-tweaks = ">=1.4.11"
 Django = "~=4.2.5"
 Pillow = "*"
-django-silk = "~=5.0.3"
+django-silk = "~=5.0.4"
 django-allow-cidr = ">=0.4.0"
 django-robots = ">=5.0"
 docutils = "*"