Upgrade @metamask/composable-controller to version 12.0.0

A new major version of `@metamask/composable-controller`, 12.0.0, is now available. This issue has been assigned to you and your team because you code-own this package in the `core` repo. If this package is present in this project, please prioritize upgrading it soon to unblock new features and bugfixes.

Check the project’s dependency manifests and lockfiles to determine whether @metamask/composable-controller is present and where it is declared. Review the package’s upgrade implications, update it to version 12.0.0, and run the relevant mobile project checks to confirm the dependency resolves and existing behavior remains intact.

Written by the indexing model from the issue text.