fix: DatePicker itemHeight calculation

[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
• Refactoring
• Code style optimization
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🔗 Related issue link

resolve #47550

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Fix DatePicker component height not correct when customize controlHeight.
🇨🇳 Chinese	修复 DatePicker 配置自定义 controlHeight 时，展示高度不正确的问题。

☑️ 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

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[github-actions]

👁 Visual Regression Report for PR #47874 Failed ❌

🎯 Target branch: master (f9e9b8b)
📖 View Full Report ↗︎

Image name	Expected	Actual	Diff
date-picker-component-token.compact.png
date-picker-component-token.compact.css-var.png
date-picker-component-token.dark.png
date-picker-component-token.dark.css-var.png
date-picker-component-token.default.png
date-picker-component-token.default.css-var.png
date-picker-multiple-debug.compact.png
date-picker-multiple-debug.compact.css-var.png
form-col-24-debug.compact.png
form-col-24-debug.compact.css-var.png

Check Full Report for details

[github-actions]

[github-actions]

size-limit report 📦

Path	Size
./dist/antd.min.js	334.52 KB (+62 B 🔺)
./dist/antd-with-locales.min.js	380.44 KB (+188 B 🔺)

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This pull request is automatically built and testable in CodeSandbox.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (bdc382b) to head (f0f12c7).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master    #47874   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          736       736           
  Lines        12645     12656   +11     
  Branches      3326      3326           
=========================================
+ Hits         12645     12656   +11     

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