fix: Table column render with array

[zombieJ]

fix ant-design/ant-design#20734

[vercel]

This pull request is being automatically deployed with ZEIT Now (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://zeit.co/react-component/table/8grrnnw4b
✅ Preview: https://table-git-fix-table-cell-array.react-component.now.sh

[codecov]

Codecov Report

Merging #402 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #402      +/-   ##
==========================================
+ Coverage   99.83%   99.83%   +<.01%     
==========================================
  Files          21       21              
  Lines         597      600       +3     
  Branches      163      166       +3     
==========================================
+ Hits          596      599       +3     
  Misses          1        1

Impacted Files	Coverage Δ
src/Cell/index.tsx	98.27% <100%> (+0.09%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a687f4d...f942988. Read the comment docs.