Fix launching electron app using CLI (#1319)

Author: Methuselah96

packages/redux-devtools-cli/src/bin/openApp.ts

@@ -12,7 +12,7 @@ export default async function openApp(app: true | string, options: Options) {
     try {
       const port = options.port ? `--port=${options.port}` : '';
       // eslint-disable-next-line @typescript-eslint/no-var-requires
-      spawn.sync(require('electron') as string, [
+      spawn(require('electron') as string, [
         path.join(
           path.dirname(fileURLToPath(import.meta.url)),
           '..',