docs: changelog 5.12.5

[MadCcc]

• 💄 Fix Tabs style issue of editable mode when there is only "new" button left. #46585 @hzyhbk
• 💄 Fix Propgress style issue of line mode with strokeLinecap. #46551 @ZN1996
• 🐞 Fix ColorPicker not support prefixCls. #46561

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• 💄 修复 Tabs 在 可编辑模式下只剩新增按钮时按钮的样式问题。#46585 @hzyhbk
• 💄 修复 Progress strokeLinecap 不生效的问题。#46551 @ZN1996
• 🐞 修复 ColorPicker 配置 prefixCls 不生效的问题。#46561

[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
• Performance optimization
• Enhancement feature
• Internationalization
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Workflow
• Other (about what?)

🔗 Related issue link

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English
🇨🇳 Chinese

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⚠️ Please check all items below before requesting a reviewing. ⚠️

• Doc is updated/provided or not needed
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[github-actions]

Visual Regression Report for PR #46589 Passed ✅

Target branch: master (45b8072)

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Congrats! No visual-regression diff found

[github-actions]

[github-actions]

🎉 Verify package version passed!

PR package version	PR title version
5.12.5	5.12.5

[github-actions]

size-limit report 📦

Path	Size
./dist/antd.min.js	328.79 KB (+172 B 🔺)
./dist/antd-with-locales.min.js	374.54 KB (+14 B 🔺)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (45b8072) 100.00% compared to head (c33849e) 100.00%.

Additional details and impacted files

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##            master    #46589   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files          708       708           
  Lines        12120     12120           
  Branches      3218      3218           
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  Hits         12120     12120           

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