Tips "react-scripts": "5.0.0" will course jsx error

pragma and pragmaFrag cannot be set when runtime is automatic.
```

/** @jsx Didact.createElement */
const element = (
  <div id="foo">
    <a href="">bar</a>
    <b></b>
  </div>
)
```
"react-scripts": "3.0.0" was OK.