fix(select): autoWidth in multiple

[uyarn]

🤔 这个 PR 的性质是？

• 日常 bug 修复
• 新特性提交
• 文档改进
• 演示代码改进
• 组件样式/交互改进
• CI/CD 改进
• 重构
• 代码风格优化
• 测试用例
• 分支合并
• 其他

🔗 相关 Issue

• [Select] 多选场景下 autoWidth 无效 #1257

💡 需求背景和解决方案

📝 更新日志

• fix(Select): 修复autoWidth在multiple模式下失效的问题

• chore(Input): 增加Input size的demo

• 本条 PR 不需要纳入 Changelog

☑️ 请求合并前的自查清单

⚠️ 请自检并全部勾选全部选项。⚠️

• 文档已补充或无须补充
• 代码演示已提供或无须提供
• TypeScript 定义已补充或无须补充
• Changelog 已提供或无须提供

[github-actions]

[codecov-commenter]

Codecov Report

Merging #1279 (27333c8) into develop (b249875) will decrease coverage by 0.00%.
The diff coverage is 53.54%.

@@             Coverage Diff             @@
##           develop    #1279      +/-   ##
===========================================
- Coverage    59.73%   59.73%   -0.01%     
===========================================
  Files         1007     1007              
  Lines        17661    17768     +107     
  Branches      4032     4069      +37     
===========================================
+ Hits         10550    10613      +63     
- Misses        7111     7155      +44     

Impacted Files	Coverage Δ
src/cascader/Cascader.tsx	57.89% <0.00%> (ø)
src/input-number/_example/center.jsx	44.44% <ø> (ø)
src/input-number/_example/large-number.jsx	100.00% <ø> (ø)
src/select/base/Select.tsx	72.31% <ø> (ø)
src/table/THead.tsx	92.85% <0.00%> (-2.27%)	⬇️
src/table/_example/affix.jsx	95.74% <ø> (ø)
src/tag-input/TagInput.tsx	63.79% <ø> (ø)
src/input/_example/size.jsx	33.33% <33.33%> (-9.53%)	⬇️
src/table/hooks/useColumnResize.tsx	31.25% <44.70%> (+16.75%)	⬆️
src/table/hooks/useFixed.ts	43.52% <57.14%> (+2.94%)	⬆️
... and 9 more

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