fix(hiddenTextarea): A form field element should have an id or name attribute

[zhe-he]

Form elements require a name or an ID, so I added a name to this element to resolve the browser warning

[zhe-he]

https://github.com/ant-design/ant-design/issues/47177

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.02%. Comparing base (c0afd39) to head (a2f6e74). Report is 8 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #59   +/-   ##
=======================================
  Coverage   99.02%   99.02%           
=======================================
  Files           3        3           
  Lines         205      206    +1     
  Branches       61       60    -1     
=======================================
+ Hits          203      204    +1     
  Misses          2        2           

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[Lomnus]

什么时候可以merge呢 @afc163