Remove redundant type imports from utils.ts

Cleaned up utils.ts by removing unused type imports that were already defined in types.d.ts. Also updated package version to 0.5.9.

Author: JeffreyNijs

package.json

@@ -1,6 +1,6 @@
 {
   "name": "hey-api-builders",
-  "version": "0.5.8",
+  "version": "0.5.9",
   "description": "A custom plugin for @hey-api/openapi-ts that wraps JSON Schema Faker to generate builders.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",

types.d.ts

@@ -23,7 +23,6 @@ export interface Config {
 
 export type BuildersPlugin = DefinePlugin<Config>
 
-// Schema-related types moved from utils.ts
 export interface BuilderOptions {
   useDefault?: boolean;
   useExamples?: boolean;

utils.ts

@@ -1,15 +1,12 @@
 import type { IR } from '@hey-api/openapi-ts';
 import type { Schema } from 'json-schema-faker';
 import type {
-  BuildersPlugin,
-  BuilderOptions,
   GeneratedSchemaMeta,
   EnumSchemaObject,
   EnumItem,
   JsonValue,
   ExtendedSchema,
   NormalizedSchemaNode,
-  BuildersHandler
 } from './types';
 
 export function irToSchema(