refactor(service): 使用 Partial 类型更新变异参数类型

src/service/wp.service.ts

@@ -320,7 +320,7 @@ export class WPService {
     site: any,
     productId: string,
     variationId: string,
-    data: UpdateVariationDTO
+    data: Partial<UpdateVariationDTO>
   ): Promise<Boolean> {
     const { regular_price, sale_price, ...params } = data;
     return await this.updateData(