Fix to ensure support for both Livewire v3 and v4

[h4or]

Fixes #4

Problem

Version 2.0.1 added support for Livewire 4 by changing the call() method signature in SupportSignedActions to accept 5 parameters ($method, $params, $returnEarly, $metadata, $componentContext). However, Livewire 3's ComponentHook only passes 3 arguments to call(), resulting in:

Too few arguments to function SupportSignedActions::call(), 3 passed in ComponentHook.php on line 41 and exactly 5 expected

This breaks all Livewire 3 applications that update to livewire-strict 2.0.1.

Fix

Made $metadata and $componentContext optional by defaulting them to null. Since neither parameter is used in the method body, this is safe and maintains compatibility with both Livewire 3 (3 args) and Livewire 4 (5 args).

[PhiloNL]

Perfect, thanks @h4or for the quick fix 🙏

[h4or]

@PhiloNL happy to help :)