fix: correct typing of itemRender

[JounQin]

reference ant-design/ant-design#32881 (comment)

[vercel]

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[codecov]

Codecov Report

Merging #356 (c98a861) into master (24d36ac) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #356   +/-   ##
=======================================
  Coverage   92.55%   92.55%           
=======================================
  Files           3        3           
  Lines         336      336           
  Branches      116      116           
=======================================
  Hits          311      311           
  Misses         25       25           

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