chore: adjust RangePicker style

[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

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Adjust RangePicker arrow & suffix color style.
🇨🇳 Chinese	微调 RangePicker 箭头和后缀的颜色样式。

☑️ 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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This pull request is automatically built and testable in CodeSandbox.

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[codecov]

Codecov Report

Merging #23025 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #23025   +/-   ##
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  Coverage   98.36%   98.36%           
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  Files         364      364           
  Lines        7264     7264           
  Branches     1992     1992           
=======================================
  Hits         7145     7145           
  Misses        119      119           

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