Spaces in asserted types

[zerkms]

Not sure if it's duplicate or related to #2067 so posting separately.

When @psalm-assert follows the array generic type with spaces inside the docblock parser fails to properly parse it.

https://psalm.dev/r/e4936dc5e4

<?php
  
/**
 * @psalm-assert array<string, string[]> $data
 * @param mixed $data
 */
function isArrayOfStrings($data): void {}