Module not found: Error: ember-cli-mirage is trying to import the app's @ember/string package, but it seems to be missing

[VasylMarchuk]

Greetings! We're trying to update @ember/string to v4, as part of upgrading to ember 5.12, and get the following error:

Module not found: Error: ember-cli-mirage is trying to import the app's @ember/string package, but it seems to be missing

According to this comment:

packages using @ember/string, as of ember-source @ v5, must declare it in either their dependencies or peerDependencies

Please fix, thanks in advance!