gemini_provider.settings:_core missing schema

Problem/Motivation

If you have the Config Schema checker enabled in your dev env (as you should) you get the following error on module insta..

In ConfigSchemaChecker.php line 98:
                                                                                                                       
  Schema errors for gemini_provider.settings with the following errors: gemini_provider.settings:_core missing schema  
                                                                                                                       

Steps to reproduce

Proposed resolution

Correct the config schema, because gemini_provider.settings is a config object not a mapping.

Remaining tasks

User interface changes

API changes

Data model changes