Upgrade @metamask/ens-controller to version 18.0.0

A new major version of `@metamask/ens-controller`, 18.0.0, 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.

Locate whether @metamask/ens-controller is present in the project and identify the dependency manifest and any relevant lockfile. Update the package to version 18.0.0, then run the repository's dependency or validation checks. Done means the project uses the requested version without introducing validation failures.

Written by the indexing model from the issue text.