fix(pro:textarea): height isn't correct when rows is set

[sallerli1]

PR Checklist

Please check if your PR fulfills the following requirements:

• 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?

配置了 rows 之后，高度不正确，没有任何输入依然会出现滚动条

What is the new behavior?

Other information

[idux-bot]

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 90.74%. Comparing base (c6727d9) to head (f69fa66).

Files	Patch %	Lines
packages/pro/textarea/src/ProTextarea.tsx	0.00%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1894      +/-   ##
==========================================
- Coverage   90.77%   90.74%   -0.03%     
==========================================
  Files         359      359              
  Lines       35256    35264       +8     
  Branches     2807     2807              
==========================================
  Hits        32002    32002              
- Misses       3254     3262       +8     

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