fix(babel-helper-vue-transform-on): dts type

Author: sxzz

packages/babel-helper-vue-transform-on/index.d.ts

@@ -1,4 +1,4 @@
 declare function transformOn(
   obj: Record<string, any>
 ): Record<`on${string}`, any>;
-export default transformOn;
+export = transformOn;