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/specific-versions/cryptography_41/vectors.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, cryptography
+, setuptools
+}:
+
+buildPythonPackage rec {
+  pname = "cryptography-vectors";
+  # The test vectors must have the same version as the cryptography package
+  inherit (cryptography) version;
+  format = "pyproject";
+
+  src = fetchPypi {
+    pname = "cryptography_vectors";
+    inherit version;
+    hash = "sha256-gN4EUsSzT1b1UY6B69dba5BfVyiq7VIdQuQfTryKQ/s=";
+  };
+
+  nativeBuildInputs = [
+    setuptools
+  ];
+
+  # No tests included
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "cryptography_vectors"
+  ];
+
+  meta = with lib; {
+    description = "Test vectors for the cryptography package";
+    homepage = "https://cryptography.io/en/latest/development/test-vectors/";
+    downloadPage = "https://github.com/pyca/cryptography/tree/master/vectors";
+    license = with licenses; [ asl20 bsd3 ];
+    maintainers = with maintainers; [ SuperSandro2000 ];
+  };
+}