fix(Swipe): item should only rendered once

[chenjiahan]

#7399

[github-actions]

🎊 PR Preview 818192c has been successfully built and deployed to https://youzan-vant-preview-pr-7466.surge.sh

🕐 Build time: 71.217s

_{🤖 By surge-preview}

[codecov-io]

Codecov Report

Merging #7466 into 2.x will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##              2.x    #7466   +/-   ##
=======================================
  Coverage   90.65%   90.66%           
=======================================
  Files         179      179           
  Lines        4890     4893    +3     
  Branches      296      296           
=======================================
+ Hits         4433     4436    +3     
  Misses        419      419           
  Partials       38       38           

Impacted Files	Coverage Δ
src/swipe-item/index.js	95.83% <100.00%> (+0.59%)	⬆️

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