[mock-chronik-client] Major version bump for new chronik-client types

Summary:
Typescript apps using the published version before this and latest chronik-client will get type errors

Bump version to update types in published module

Test Plan: CI tests

Reviewers: #bitcoin_abc, johnkuney

Reviewed By: #bitcoin_abc, johnkuney

Differential Revision: https://reviews.bitcoinabc.org/D17727