Upgrade @metamask/gator-permissions-controller to version 3.0.0

A new major version of `@metamask/gator-permissions-controller`, 3.0.0, 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.

Search the repository's dependency manifests for @metamask/gator-permissions-controller and confirm whether the package is present. Review the existing dependency-update workflow and run the relevant checks after changing it; done means the project uses version 3.0.0 and those checks pass.

Written by the indexing model from the issue text.