fix(core): update

ts/index.ts

@@ -1,10 +1,9 @@
 import open from 'open';
-import { ChildProcess } from 'child_process';
 
-export let openUrl = async urlArg => {
+export let openUrl = async (urlArg: string) => {
   if (!(process.env.CI === 'true')) {
     const childProcess = await open(urlArg, {
-      wait: false
+      wait: false,
     });
     return childProcess;
   } else {