fix(pro:tree): onSearch cannot get the latest searchValue value

[liuzaijiang]

PR Checklist

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• The commit message follows our guidelines
• Tests for the changes have been added/updated or not needed
• Docs and demo have been added/updated or not needed

What is the current behavior?

当设置searchValue后，onSearch无法获取最新的输入值

What is the new behavior?

获取正常

Other information

[idux-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #1043 (f206989) into main (7582c6c) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1043      +/-   ##
==========================================
+ Coverage   93.75%   93.76%   +0.01%     
==========================================
  Files         314      314              
  Lines       29987    29989       +2     
  Branches     3540     3541       +1     
==========================================
+ Hits        28113    28118       +5     
+ Misses       1874     1871       -3     

Impacted Files	Coverage Δ
packages/pro/tree/src/ProTree.tsx	96.25% <100.00%> (+1.63%)	⬆️
packages/pro/tree/src/types.ts	100.00% <100.00%> (ø)

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