fix: 修复 loading demo 引用出错的问题

[DiamondYuan]

No description provided.

[github-actions]

🎊 PR Preview 1d24af5 has been successfully built and deployed to https://ant-design-ant-design-mini-preview-pr-1116.surge.sh

🕐 Build time: 258.922s

_{🤖 By surge-preview}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.03%. Comparing base (4458d12) to head (1d24af5).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1116   +/-   ##
=======================================
  Coverage   90.03%   90.03%           
=======================================
  Files         150      150           
  Lines        3694     3694           
  Branches      917      917           
=======================================
  Hits         3326     3326           
  Misses        315      315           
  Partials       53       53           

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