removed required for part validation type in quality validation

app/Filament/Resources/QualityValidationResource.php

@@ -654,7 +654,6 @@ class QualityValidationResource extends Resource
                     ->label('Select Validation')
                     ->reactive()
                     ->options(fn (callable $get) => $get('part_validation_type_options') ?? [])
-                    ->required()
                     ->afterStateUpdated(function ($state, callable $set) {
                         // when user selects something new, hide the image
                         $set('show_validation_image', false);