btcpayserver: 1.11.2 -> 1.11.4
clightning: 23.05.2 -> 23.08.1
hwi: 2.2.1 -> 2.3.1
Remove custom coincurve, since nixos-23.05 includes the latest version
of coincurve (18) that's required by pyln-proto.
Co-authored-by: Erik Arvstedt <erik.arvstedt@gmail.com>
