Fix `incompatible_msrv_exceptions` clippy warnings
We're ignoring potential MSRV incompatibilities in payjoin-cli with #[allow(clippy::incompatible_msrv_exceptions)]. These should be removed and fixed.
Gotta open an issue to fix these incompatible_msrv exceptions. They're not MSRV compliant!
Originally posted by @DanGould in https://github.com/payjoin/rust-payjoin/pull/750#discussion_r2156194894
Hey man, would bumping the MSRV to 1.64.0 be an acceptable solution here? i can see it's one of the cleanest solution.
We must stay on 1.63 to respect the MSRV in the wider rust bitcoin ecosystem (e.g. rust-bitcoin, bdk, rust-lightning).
It looks like this lint was added in 1.78