protoc-gen-twirp_typescript: fix vendor hash

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

···
     sha256 = "sha256-LfF/n96LwRX8aoPHzCRI/QbDmZR9yMhE5yGhFAqa8nA=";
   };
 
-  vendorSha256 = "sha256-xZlP4rg1FMx6ddkKYlSdF6NrtY8xBZ3aEZSATgSf13M=";
+  vendorSha256 = "sha256-WISWuq1neVX4xQkoamc6FznZahOQHwgkYmERJF40OFQ=";
 
   subPackages = [ "." ];