Release payjoin-cli-1.0.0-rc.2

Track payjoin 1.0.0-rc.8, whose check_inputs_not_owned callback now
identifies inputs by outpoint instead of script. The CLI resolves each
outpoint's scriptPubKey from the receiver node's own record of the funding
transaction before checking ownership. A receiver session with no spendable
inputs to contribute now remains recoverable instead of being cancelled
automatically: the receiver can fund the wallet and resume the session, or run
payjoin-cli cancel <id> to fall back to the original transaction.

Selected Improvements:

• Bump payjoin to version 1.0.0-rc.8 by @spacebear21 in #1795
• Bump payjoin to version 1.0.0-rc.7 by @spacebear21 in #1782
• Keep receiver input failures recoverable by @Jolah1 in #1769

What's Changed

• Bump payjoin-cli version to 1.0.0-rc.2 by @spacebear21 in #1789

Full Changelog: payjoin-1.0.0-rc.8...payjoin-cli-1.0.0-rc.2