feat: add default boolean rule to scope filter

Author: lindyhopchris

src/Filters/Scope.php

@@ -16,6 +16,7 @@
 use LaravelJsonApi\Eloquent\Filters\Concerns\DeserializesValue;
 use LaravelJsonApi\Eloquent\Filters\Concerns\IsSingular;
 use LaravelJsonApi\Validation\Filters\ValidatedWithRules;
+use LaravelJsonApi\Validation\Rules\JsonBoolean;
 
 class Scope implements Filter
 {
@@ -75,6 +76,18 @@ public function apply($query, $value)
         );
     }
 
+    /**
+     * @return array
+     */
+    protected function defaultRules(): array
+    {
+        if ($this->asBool) {
+            return [(new JsonBoolean())->asString()];
+        }
+
+        return [];
+    }
+
     /**
      * @return string
      */