Adjust to #2311679 - Separate MIME type mapping from ExtensionMimeTypeGuesser

The core commit leads to this failure on the module

Exception: Deprecated function: Creation of dynamic property Drupal\sophron\CoreExtensionMimeTypeGuesserExtended::$moduleHandler is deprecated

Let's quick fix and release this so not to have issues when D11.2 is released.

Then we probably need a new major 3.0.x to deal with the other deprecations.

mondrake → changed the visibility of the branch 3519413-fix to hidden.

Automatically closed - issue fixed for 2 weeks with no activity.