disable wizard next button

   Forms\Components\Wizard::make([
                Forms\Components\Wizard\Step::make('Customer')
                    ->columns(2)
                    ->schema(fn(): array => $this->getStepOneWizardFormSchema())
                    ->afterValidation(fn() => $this->resolveCustomer()),

                Forms\Components\Wizard\Step::make('Cart')
                    ->schema(fn(): array => $this->getStepTwoWizardFormSchema())
                    ->afterValidation(fn(Forms\Get $get) => $this->validateCartBeforeCheckout($get)),

                Forms\Components\Wizard\Step::make('Checkout')
                    ->schema(fn(): array => $this->getStepThreeWizardFormSchema()),
            ])
                ->contained(false)
                ->columnSpanFull()
                ->nextAction(
                    fn(Action $action): Action => $action
                        // hide the button until we have a $this->customer
                        ->hidden(true)
                        ->disabled(true)
                        ->livewireTarget(null)
                ),