chore: fix file naming

src/sku/Sku.js

@@ -18,7 +18,7 @@ import {
   getSelectedSkuValues,
   getSelectedPropValues,
   getSelectedProperties,
-} from './utils/skuHelper';
+} from './utils/sku-helper';
 import { LIMIT_TYPE, UNSELECTED_SKU_VALUE_ID } from './constants';
 
 const namespace = createNamespace('sku');

src/sku/components/SkuRowItem.js

@@ -1,5 +1,5 @@
 import { createNamespace } from '../../utils';
-import { isSkuChoosable } from '../utils/skuHelper';
+import { isSkuChoosable } from '../utils/sku-helper';
 
 const [createComponent] = createNamespace('sku-row-item');
 

src/sku/index.js

@@ -1,7 +1,7 @@
 // Utils
 import lang from './lang';
 import constants from './constants';
-import skuHelper from './utils/skuHelper';
+import skuHelper from './utils/sku-helper';
 
 // Components
 import Sku from './Sku';