fix: aria-role change to mask and update loading snap

Author: gaoachao

src/components/half-screen-dialog/half-screen-dialog.wxml

@@ -41,5 +41,5 @@
  </view>
  </view>
 </view>
-<view wx:if="{{wrapperShow && mask}}" class="weui-mask {{innerShow ? 'weui-animate-fade-in' : 'weui-animate-fade-out' }}" style="z-index:900" bindtap="close" data-type="close" aria-role="button" aria-label="关闭"></view>
+<view wx:if="{{wrapperShow && mask}}" class="weui-mask {{innerShow ? 'weui-animate-fade-in' : 'weui-animate-fade-out' }}" style="z-index:900" bindtap="close" data-type="close" aria-role="mask" aria-label="蒙层"></view>
 </root-portal>

src/components/loading/__test__/__snapshots__/loading.test.ts.snap

@@ -10,8 +10,9 @@ exports[`loading basic 1`] = `
  <wx-view
  class="weui-loadmore"
  >
- <wx-view
- class="weui-loading"
+ <wx-image
+ class="weui-loading-animation"
+ src="./loading-icon.svg"
  />
  <wx-view
  class="weui-loadmore__tips"