After modifying array inside foreach phpstan no longer considers it iterable

### Bug report

afaik affects 2.1.18(+) version only

### Code snippet that reproduces the problem

https://phpstan.org/r/8ab68296-f8bd-4f7d-baa5-fed88f66ba88

### Expected output

no issues

### Did PHPStan help you today? Did it make you happy in any way?

_No response_