Repository: create-react-app
Issue: 'BigInt' is not defined
Labels: needs triage,issue: bug report

### Describe the bug

The JavaScript/ES2020 native `BigInt` is not available in the latest `create-react-app` on Node 20, but 

```bash
node -e 'console.log(BigInt(42))'
```

correctly outputs `42n`

but `npm start` or `yarn start` fail with an error

```
'BigInt' is not defined  no-undef 
```

### Did you try recovering your dependencies?

There are no dependencies other than the originally added/installed by `create-react-app`

### Which terms did you search for in User Guide?

- BigInt 
- BigInt react is not defined
- BigInt yarn v1 is not defined
- BigInt npm yarn node 20
- react-scripts BigInt is not defined
- create-react-app bigint support
- BigInt browser compatibility
- BigInt node requirements
- BigInt ES2020
- jsconfig es2020

### Environment

```text
Environment Info:

  current version of create-react-app: 5.0.1
  running from /usr/local/lib/node_modules/create-react-app

  System:
    OS: Linux 5.10 Alpine Linux
    CPU: (8) x64 Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz
  Binaries:
    Node: 20.4.0 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 9.8.1 - /usr/local/bin/npm
  Browsers:
    Chrome: Not Found
  npmPackages:
    react: ^18.2.0 => 18.2.0
    react-dom: ^18.2.0 => 18.2.0
    react-scripts: 5.0.1 => 5.0.1
  npmGlobalPackages:
    create-react-app: 5.0.1
```

### Steps to reproduce

1. Create a new node 20 docker container
`docker run --rm -it --entrypoint sh node:20-alpine` 

2. Install git, nano, and `create-react-app` in the container (I dislike using `vim`)

```bash
# apk add git nano
# npm install -g create-react-app
```

3. Create a new react app
`npx create-react-app bigint`

4. Add `BigInt` into the `index.js` code

```javascript
import React from 'react';
import ReactDOM from 'react-dom/client';
import './index.css';
import App from './App';
import reportWebVitals from './reportWebVitals';

console.log(BigInt(42));
const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(
  <React.StrictMode>
    <App />
  </React.StrictMode>
);

// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();
```

5. Save `index.js`
6. Run `npm start` or `yarn start`

```bash
Failed to compile.

[eslint]
src/index.js
  Line 7:13:  'BigInt' is not defined  no-undef        

Search for the keywords to learn more about each error.
ERROR in [eslint]
src/index.js
  Line 7:13:  'BigInt' is not defined  no-undef        

Search for the keywords to learn more about each error.

webpack compiled with 1 error
```

### Expected behavior

The compilation should not failed and the development server should start. Upon loading http://localhost:3000 (by default) the browser console should have an etry for `42n`

### Actual behavior

![image](https://github.com/facebook/create-react-app/assets/722049/2b31d726-b497-44d9-b014-72a97e270f54)

### Reproducible demo

https://codesandbox.io/s/react-bigint-undefined-3mmh66?file=/src/App.js