wallet: IsMine overloads require cs_wallet lock

Summary:
This is a backport of core#19289 [2/3]
https://github.com/bitcoin/bitcoin/pull/19289/commits/d8441f30ff57e4ae98cff6694c995eaffc19c51a

Depends on D10095

Test Plan: ninja all check-all

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Subscribers: Fabien

Differential Revision: https://reviews.bitcoinabc.org/D10096