Captcha is rendered just once on React 18 in concurrent mode

Captcha component is rendered just once in all application. It's not rendered in other component or conditionally. You can find issue example on [CodeSandbox](https://codesandbox.io/s/wizardly-water-xfmn4n?file=/src/App.js). Just empty `div` is rendered for subsequent captcha elements.

This issue relates to the concurrent mode introduced in React 18. It doesn't work as expected if app is wrapped in `StrictMode` on React 18 which enables concurrent mode.

react version: 18.2.0
react-google-recaptcha version: 2.1.0
react-async-script version: 1.2.0