fix filterIcon type

[michael-land]

based on api [ReactNode|(filtered: boolean) => ReactNode]

https://ant.design/components/table-cn/#components-table-demo-dynamic-settings

First of all, thank you for your contribution! :-)

Please makes sure that these checkboxes are checked before submitting your PR, thank you!

• [x ] Make sure that you propose PR to right branch: bugfix for master, feature for branch feature.
• [x ] Make sure that you follow antd's code convention.
• [x ] Run npm run lint and fix those errors before submitting in order to keep consistent code style.
• Rebase before creating a PR to keep commit history clear.
• [x ] Add some descriptions and refer relative issues for you PR.

Extra checklist:

if isBugFix :

• Make sure that you add at least one unit test for the bug which you had fixed.

elif isNewFeature :

• Update API docs for the component.
• Update/Add demo to demonstrate new feature.
• Update TypeScript definition for the component.
• Add unit tests for the feature.

[ant-design-bot]

Deploy preview for ant-design ready!

Built with commit 1f8ac3f

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[codecov]

Codecov Report

Merging #12374 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #12374   +/-   ##
=======================================
  Coverage   92.26%   92.26%           
=======================================
  Files         210      210           
  Lines        5483     5483           
  Branches     1543     1543           
=======================================
  Hits         5059     5059           
- Misses        418      420    +2     
+ Partials        6        4    -2

Impacted Files	Coverage Δ
components/transfer/index.tsx	87.91% <0%> (ø)	⬆️
components/time-picker/index.tsx	81.81% <0%> (ø)	⬆️

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