fix openapi-fetch d.cts filename

Author: Marco Muser

node_modules/openapi-fetch/dist/index.cjs renamed to node_modules/openapi-fetch/dist/cjs/index.cjs

@@ -1,7 +1,6 @@
 import createClient from "openapi-fetch";
 
 export const main = () => {
-    return `'createClient' is declared but its value is never read.ts(6133)
-    The current file is a CommonJS module whose imports will produce 'require' calls; however, the referenced file is an ECMAScript module and cannot be imported with 'require'. Consider writing a dynamic 'import("openapi-fetch")' call instead.
-    To convert this file to an ECMAScript module, change its file extension to '.mts', or add the field "type": "module" to '/Users/marco/Documents/repos/cjsts/package.json'.ts(1479)`
+    const client = createClient()
+    return client;
 }