[backport#13932] Implement utxoupdatepsbt RPC and tests

Summary:
https://github.com/bitcoin/bitcoin/pull/13932/commits/7344a7b9984b99882e136efc8ad48fb31740df93

This is a partial backport of Core PR13932

Test Plan:

ninja check
test_runner.py rpc_psbt

Reviewers: #bitcoin_abc, deadalnix

Reviewed By: #bitcoin_abc, deadalnix

Subscribers: deadalnix

Differential Revision: https://reviews.bitcoinabc.org/D6043