ArrayAccess::offsetSet() may throw an exception

# Bug report

When ArrayAccess::offsetSet() throws an exception PHPStan thinks

```php
try {
    $store[] = $carrier;
} catch ( \Exception $e ) {
```

the `catch` block is never executed.

### Code snippet that reproduces the problem

https://phpstan.org/r/a409c5cc-ba0f-4383-8bd0-c2a5ba791f86

### Expected output

No error.

Please advise.
Thank you.
