[php-src] Issue #23196: Static property hooks

Issue: https://github.com/php/php-src/issues/23196
Author: procodix

### Description

Has anyone ever asked for property hooks on static properties? Or, more importantly: has anyone actually gone through the trouble of writing an RFC for it?

The current Property Hooks RFC explicitly excludes static properties. I was wondering whether this is simply a limitation that has never been addressed, or whether there are good reasons why static property hooks should not exist.

For example:

```php
class Foo
{
    public static string $bar {
        get => ...;
        set => ...;
    }
}
```

If there is interest, I would be happy to take on the work of writing the RFC.