update nixpkgs

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>

pkgs/python-packages/pyln-proto/default.nix

@@ -6,6 +6,7 @@
 , cryptography
 , coincurve
 , base58
+, pysocks
 }:
 
 buildPythonPackage rec {
@@ -22,13 +23,10 @@ buildPythonPackage rec {
     cryptography
     coincurve
     base58
+    pysocks
   ];
 
   checkInputs = [ pytestCheckHook ];
 
   postUnpack = "sourceRoot=$sourceRoot/contrib/pyln-proto";
-
-  postPatch = ''
-    sed -i 's|cryptography = "^36.0.1"|cryptography = "^40.0"|' pyproject.toml
-  '';
 }