chore: fix Pagination size small of CP

[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
• Performance optimization
• Enhancement feature
• Internationalization
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🔗 Related issue link

💡 Background and solution

resolve #42205

📝 Changelog

Language	Changelog
🇺🇸 English	Fix ConfigProvider size prop not work on Pagination.
🇨🇳 Chinese	修复 ConfigProvider size 对 Pagination 无效的问题。

☑️ Self-Check before Merge

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

• 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

---

🚀 Summary

🤖 Generated by Copilot at d3001ad

Refactor Pagination component to use global SizeContext and add customizeSize prop. Add test case for configProvider component with componentSize prop.

🔍 Walkthrough

🤖 Generated by Copilot at d3001ad

• Use SizeContext to provide global size for Pagination component (link, link, link)
• Add test case for configProvider component with small size (link)

[github-actions]

[github-actions]

size-limit report 📦

Path	Size
./dist/antd.min.js	376.17 KB (+10 B 🔺)
./dist/antd-with-locales.min.js	435.41 KB (+9 B 🔺)

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (3414e45) 100.00% compared to head (7ca80b3) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##            master    #42206   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          617       617           
  Lines        10542     10545    +3     
  Branches      2882      2883    +1     
=========================================
+ Hits         10542     10545    +3     

Impacted Files	Coverage Δ
components/locale/bg_BG.ts	100.00% <100.00%> (ø)
components/pagination/Pagination.tsx	100.00% <100.00%> (ø)

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