protoc-gen-twirp: migrate to buildGoModule

Signed-off-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>

pkgs/development/tools/protoc-gen-twirp/default.nix

@@ -1,6 +1,6 @@
-{ lib, buildGoPackage, fetchFromGitHub }:
+{ lib, buildGoModule, fetchFromGitHub }:
 
-buildGoPackage rec {
+buildGoModule rec {
   pname = "protoc-gen-twirp";
   version = "8.1.3";
 
@@ -11,14 +11,16 @@ buildGoPackage rec {
     sha256 = "sha256-p3gHVHGBHakOOQnJAuMK7vZumNXN15mOABuEHUG0wNs=";
   };
 
-  goPackagePath = "github.com/twitchtv/twirp";
+  postPatch = ''
+    go mod init github.com/twitchtv/twirp
+  '';
+
+  vendorHash = null;
 
   subPackages = [
     "protoc-gen-twirp"
   ];
 
-  doCheck = true;
-
   meta = with lib; {
     description = "A simple RPC framework with protobuf service definitions";
     mainProgram = "protoc-gen-twirp";