4.26.0 introduces breaking changes for some 3rd party packages

[Blindmikey]

• Laravel Version: 10.14.0
• Nova Version: 4.26.0
• PHP Version: 8.1

Description:

Perhaps this is up to 3rd party package maintainers but I figured I post this here as well.

Breaks some well-used 3rd party packages:
outl1ne/nova-settings#166
whitecube/nova-flexible-content#464
Possibly more.

Causes packages to throw an error concerning ::forceFill()
such as:
Call to undefined method stdClass::forceFill()
Call to undefined method Whitecube\NovaFlexibleContent\Layouts\Layout::forceFill()

Detailed steps to reproduce the issue on a fresh Nova installation:

Step-by-step to reproduce on a clean install found here: outl1ne/nova-settings#166 (comment)

[crynobone]

Convert \stdClass to \Laravel\Nova\Support\Fluent