Bump django-tinymce from 3.5.0 to 4.1.0

Bumps [django-tinymce](https://github.com/jazzband/django-tinymce) from 3.5.0 to 4.1.0.
- [Release notes](https://github.com/jazzband/django-tinymce/releases)
- [Changelog](https://github.com/jazzband/django-tinymce/blob/master/CHANGELOG.rst)
- [Commits](jazzband/django-tinymce@3.5.0...4.1.0)

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

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

requirements.txt

@@ -150,7 +150,7 @@ django-modeltranslation==0.18.11
     # via mapentity
 django-mptt==0.14.0
     # via geotrek (setup.py)
-django-tinymce==3.5.0
+django-tinymce==4.1.0
     # via mapentity
 django-treebeard==4.7.1
     # via geotrek (setup.py)