fix:Tree scopedSlots icon no work

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[codecov]

Codecov Report

Merging #1712 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1712   +/-   ##
=======================================
  Coverage   88.04%   88.04%           
=======================================
  Files         157      157           
  Lines        5410     5410           
  Branches     1524     1524           
=======================================
  Hits         4763     4763           
  Misses        578      578           
  Partials       69       69

Impacted Files	Coverage Δ
components/tree/Tree.jsx	97.91% <ø> (ø)	⬆️

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[tangjinzhou]

ref #1711

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.