test: add unit tests for TanStack Query meta function customization

Author: ahmedrowaihi

packages/openapi-ts-tests/main/test/tanstack-query-meta-function.test.ts renamed to packages/openapi-ts-tests/main/test/plugins/@tanstack/tanstack-query-meta-function.test.ts

@@ -5,7 +5,7 @@ import { fileURLToPath } from 'node:url';
 import { createClient, type UserConfig } from '@hey-api/openapi-ts';
 import { describe, expect, it } from 'vitest';
 
-import { getFilePaths, getSpecsPath } from '../../utils';
+import { getFilePaths, getSpecsPath } from '../../../../utils';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);