fix: wrapper height should be auto when textarea has height

[MadCcc]

• Revert "Revert "fix: affixWrapper should be resized with textarea (fix: affixWrapper should be resized with textarea #40)""
• fix: wrapper height should be auto when textarea has height

close ant-design/ant-design#42846

[codecov]

Codecov Report

Merging #43 (df3039e) into master (9d7d040) will increase coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head df3039e differs from pull request most recent head 407899c. Consider uploading reports for the commit 407899c to get more accurate results

@@            Coverage Diff             @@
##           master      #43      +/-   ##
==========================================
+ Coverage   99.03%   99.06%   +0.02%     
==========================================
  Files           3        3              
  Lines         207      213       +6     
  Branches       58       60       +2     
==========================================
+ Hits          205      211       +6     
  Misses          2        2              

Impacted Files	Coverage Δ
src/TextArea.tsx	100.00% <100.00%> (ø)

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