refactor: Use constant instead of enum to reduce package size

[kiner-tang]

[中文版模板 / Chinese template]

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💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Use constant instead of enumeration to reduce package size
🇨🇳 Chinese	使用常量替代枚举减小包体积

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👁 Visual Regression Report for PR #48406 Failed ❌

🎯 Target branch: master (010ec34)
📖 View Full Report ↗︎

Image name	Expected	Actual	Diff
steps-label-placement.compact.css-var.png
steps-label-placement.dark.css-var.png
steps-label-placement.default.css-var.png
steps-progress-debug.dark.css-var.png
steps-progress.compact.css-var.png

Check Full Report for details

[github-actions]

[github-actions]

size-limit report 📦

Path	Size
./dist/antd.min.js	336.31 KB (-191 B 🔽)
./dist/antd-with-locales.min.js	383.43 KB (-59 B 🔽)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (82a7d59) to head (9cafe91).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master    #48406   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          744       744           
  Lines        12866     12875    +9     
  Branches      3366      3366           
=========================================
+ Hits         12866     12875    +9     

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[li-jia-nan]

不知道有没有 break change，不太敢合，我先点个 ap，等大佬们合吧

[fpsqdb]

如果不需要遍历枚举的话，用const enum会不会更好