Not Compatible with Corcel 6.0 / Laravel 9.0

Hello,

After updating to Corcel 6.0 / Laravel 9.0 my application started to receive the following error message:

```
Problem 1
- Root composer.json requires corcel/acf ^4.0 -> satisfiable by corcel/acf[4.0.0].
- corcel/acf 4.0.0 requires jgrossi/corcel ^4.0|^5.0 -> found jgrossi/corcel[v4.0.0, v4.0.1, 4.0.x-dev, v4.1.0, v5.0.0, 5.0.x-dev, v5.1.0, v5.1.1] but it conflicts with your root composer.json require (^6.0).
```

Is there a workaround to get this to work since there is no supporting version?

P.S. I enjoy using this package... Thank you!