build(deps): update django-modeltranslation requirement

Updates the requirements on [django-modeltranslation](https://github.com/deschler/django-modeltranslation) to permit the latest version.
- [Release notes](https://github.com/deschler/django-modeltranslation/releases)
- [Changelog](https://github.com/deschler/django-modeltranslation/blob/master/CHANGELOG.md)
- [Commits](deschler/django-modeltranslation@0.11...v0.19.10)

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

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

requirements.txt

@@ -37,7 +37,7 @@ django-imagekit==5.0.0
 django-taggit==5.0.1
 django-markdownify==0.9.5
 django-mptt==0.16.0
-django-modeltranslation>=0.11,<0.19.0
+django-modeltranslation>=0.11,<0.20.0
 django-treebeard==4.7.1
 django-guardian<2.4.1
 django-downloadview==2.3.0