Upgrade @metamask/multichain-account-service to version 10.0.0

A new major version of `@metamask/multichain-account-service`, 10.0.0, 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 the dependency declaration for @metamask/multichain-account-service in the metamask-mobile repository and inspect how the current version is used. Update it to 10.0.0, then run the relevant dependency checks and mobile test or build commands; done means the project accepts the new version without regressions.

Written by the indexing model from the issue text.