test(skeleton): add snapshot (#1215)

src/packages/__VUE/skeleton/__test__/__snapshots__/skeleton.spec.ts.snap

@@ -1,7 +1,10 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`should change avatar shape when using avatarShape prop 1`] = `
-"<view style=\\"width: 50px; height: 50px; background-color: rgb(239, 239, 239);\\" class=\\"nut-avatar avatar-normal avatar-square avatarClass avatarClass--square\\"><i class=\\"nutui-iconfont nut-icon nut-icon- icon\\" src=\\"\\"></i>
+"<view style=\\"width: 50px; height: 50px; background-color: rgb(239, 239, 239); color: rgb(102, 102, 102);\\" class=\\"nut-avatar nut-avatar-normal nut-avatar-square avatarClass avatarClass--square\\">
+  <!--v-if-->
+  <!--v-if-->
+  <!-- 折叠头像 -->
   <!--v-if-->
 </view>"
 `;