Fix type mismatch for condition in am_enqueue_script

[jessicamgoddard]

Description of the bug

PHPStan error when passing condition as an array in $handle for am_enqueue_script.

Steps To Reproduce

Using am_enqueue_script, pass $handle as an array containing condition which is also an array.

https://github.com/newscorp-ghfb/ncu-gtf/blob/eb5b7ffa4d8b37431194f4d84c3f39fde2768d2b/themes/gtf/inc/assets/class-nypost-assets.php#L157-L171

Additional Information

The condition parameter accepts either an array or a string, as correctly indicated in the type hint and PHPDoc. However, in the @phpstan-param for $handle, condition it is set to string. We need to update the @phpstan-param to support array<string>|string.