Upgrade @metamask/chomp-api-service to version 4.0.0

A new major version of `@metamask/chomp-api-service`, 4.0.0, 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 package manifests and lockfiles for @metamask/chomp-api-service and confirm whether it is present in the mobile project. Review the 4.0.0 release changes and run the relevant project checks or tests after updating the dependency; done means the project uses 4.0.0 without regressions.

Written by the indexing model from the issue text.