chore(deps): bump sorl-thumbnail from 12.7.0 to 12.11.0

Bumps [sorl-thumbnail](https://github.com/jazzband/sorl-thumbnail) from 12.7.0 to 12.11.0.
- [Release notes](https://github.com/jazzband/sorl-thumbnail/releases)
- [Changelog](https://github.com/jazzband/sorl-thumbnail/blob/master/CHANGES.rst)
- [Commits](jazzband/sorl-thumbnail@12.7.0...12.11.0)

---
updated-dependencies:
- dependency-name: sorl-thumbnail
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

base-requirements.txt

@@ -47,7 +47,7 @@ django-widget-tweaks==1.5.0
 django-countries==7.2.1
 num2words==0.5.13
 django-polymorphic==3.1.0  # 3.1.0 is first version that supports Django 4.0, unsure if it fully supports 4.2
-sorl-thumbnail==12.7.0
+sorl-thumbnail==12.11.0
 django-extensions==3.1.4
 django-import-export==2.7.1