[Bug]: AutoCaster - handling arrays

### What happened?

Details in a [comment to PR](https://github.com/flow-php/flow/pull/1920/files#r2468921644)

### How to reproduce?

```php
This is problem with AutoCaster responsibilities
```

### Data required to reproduce bug locally

Nothing


### Version

0.1.0+ 

### Relevant error output

```shell
No error message
```