fix(runtime-core): fix ShapeFlags tree shaking

Author: yyx990803

packages/runtime-core/src/component.ts

@@ -34,7 +34,7 @@ import {
   currentRenderingInstance,
   markAttrsAccessed
 } from './componentRenderUtils'
-import { ShapeFlags } from '.'
+import { ShapeFlags } from './shapeFlags'
 
 export type Data = { [key: string]: unknown }