fix: updated arktype json function

Author: MathurAditya724

src/vendors/arktype.ts

@@ -2,7 +2,7 @@ import type { Type } from "arktype";
 import type { JSONSchema7 } from "json-schema";
 import type { ToJsonSchemaFn } from "./utils.js";
 
-export default async function getToJsonSchemaFn(): Promise<ToJsonSchemaFn> {
+export default function getToJsonSchemaFn(): ToJsonSchemaFn {
   return (schema, options) =>
     (schema as Type).toJsonSchema(options) as JSONSchema7;
 }

src/vendors/index.ts

@@ -12,7 +12,7 @@ export const getToJsonSchemaFn = async (
     return cached;
   }
 
-  let vendorFnPromise: Promise<ToJsonSchemaFn>;
+  let vendorFnPromise: ToJsonSchemaFn | Promise<ToJsonSchemaFn>;
 
   switch (vendor) {
     case "arktype":