Support displaying Taproot addresses on Coldcard Edge (6+) firmware

[craigraw]

Coldcard's Edge (6+) firmware includes support for Taproot keyspends. Signing singlesig Taproot transactions is already possible using HWI 2.3.1.

However, an error is returned when displaying Taproot addresses: https://github.com/bitcoin-core/HWI/blob/c3a94b6f9d696b3a669153dcda2bfdad9c80583e/hwilib/devices/coldcard.py#L246-L247

Also noting this function, used when retrieving a descriptor: https://github.com/bitcoin-core/HWI/blob/c3a94b6f9d696b3a669153dcda2bfdad9c80583e/hwilib/devices/coldcard.py#L393-L399