Upgrade @metamask/transaction-pay-controller to version 26.0.0

A new major version of `@metamask/transaction-pay-controller`, 26.0.0, 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 for references to @metamask/transaction-pay-controller and identify the dependency manifest and lockfile that need updating. Check whether the package is present, update it to version 26.0.0, then run the relevant existing checks for the affected mobile project to confirm the upgrade is complete.

Written by the indexing model from the issue text.