feat: ConfigProvider support getTargetContainer

[zombieJ]

🤔 This is a ...

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

🔗 Related issue link

resolve #23626

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	ConfigProvider support getTargetContainer to config Affix target props.
🇨🇳 Chinese	ConfigProvider 支持 getTargetContainer 以配置 Affix target 属性。

☑️ 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]

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[codecov]

Codecov Report

Merging #23751 into feature will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff            @@
##           feature   #23751   +/-   ##
========================================
  Coverage    98.53%   98.53%           
========================================
  Files          363      364    +1     
  Lines         7247     7255    +8     
  Branches      2007     2021   +14     
========================================
+ Hits          7141     7149    +8     
  Misses         106      106           

Impacted Files	Coverage Δ
components/config-provider/context.tsx	100.00% <ø> (ø)
components/affix/index.tsx	99.13% <100.00%> (+0.04%)	⬆️
components/anchor/Anchor.tsx	94.57% <100.00%> (-0.05%)	⬇️
components/anchor/AnchorLink.tsx	100.00% <100.00%> (ø)
components/anchor/context.ts	100.00% <100.00%> (ø)
components/config-provider/index.tsx	100.00% <100.00%> (ø)

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