chore: Steps children

[zombieJ]

[中文版模板 / Chinese template]

🤔 This is a ...

• New feature
• Bug fix
• Site / documentation update
• Demo update
• Component style update
• TypeScript definition update
• Bundle size optimization
• Perfermance optimization
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Other (about what?)

🔗 Related issue link

resolve #24627

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Adjust Steps to support React.Fragment with children.
🇨🇳 Chinese	调整 Steps 先支持 children 下使用 React.Fragment。

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• TypeScript definition is updated/provided or not needed
• Changelog is provided or not needed

[ant-design-bot]

[ant-design-bot]

[codecov]

Codecov Report

Merging #24644 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #24644   +/-   ##
=======================================
  Coverage   99.21%   99.21%           
=======================================
  Files         365      365           
  Lines        7279     7279           
  Branches     2034     2025    -9     
=======================================
  Hits         7222     7222           
  Misses         57       57           

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