fix: italic should not warning

[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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• Test Case
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• Other (about what?)

🔗 Related issue link

resolve #31002

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Fix Typography warning for non-boolean attribute italic when italic config.
🇨🇳 Chinese	修复 Typography 配置 italic 时会警告不是一个合法 DOM 属性的问题。

☑️ 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

[github-actions]

[codecov]

Codecov Report

Merging #31004 (7285c27) into master (398b406) will not change coverage.
The diff coverage is n/a.

❗ Current head 7285c27 differs from pull request most recent head 8c43158. Consider uploading reports for the commit 8c43158 to get more accurate results

@@            Coverage Diff            @@
##            master    #31004   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          397       397           
  Lines         7561      7561           
  Branches      2127      2127           
=========================================
  Hits          7561      7561           

Impacted Files	Coverage Δ
components/typography/Base.tsx	100.00% <ø> (ø)

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[github-actions]

Size Change: +11 B (0%)

Total Size: 831 kB

Filename	Size	Change
./dist/antd-with-locales.min.js	341 kB	+5 B (0%)
./dist/antd.min.js	297 kB	+6 B (0%)

ℹ️ View Unchanged

Filename	Size	Change
./dist/antd.compact.min.css	63.9 kB	0 B
./dist/antd.dark.min.css	65.2 kB	0 B
./dist/antd.min.css	64.1 kB	0 B

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