fix(upload): null and type

[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

💡 需求背景和解决方案

📝 更新日志

• fix(Upload): 支持受控使用时files可设置为null

• fix(Upload): 修复处理locale的triggerUploadText的类型问题

• 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 #1358 (540b43c) into develop (3eae14b) will increase coverage by 1.12%.
The diff coverage is 69.28%.

@@             Coverage Diff             @@
##           develop    #1358      +/-   ##
===========================================
+ Coverage    59.88%   61.00%   +1.12%     
===========================================
  Files         1017     1030      +13     
  Lines        17807    17935     +128     
  Branches      4085     4125      +40     
===========================================
+ Hits         10663    10942     +279     
+ Misses        7144     6993     -151     

Impacted Files	Coverage Δ
src/_util/helper.ts	21.62% <ø> (-19.45%)	⬇️
src/config-provider/_example/global.jsx	100.00% <ø> (ø)
src/date-picker/hooks/useRange.tsx	37.66% <ø> (+0.48%)	⬆️
src/date-picker/hooks/useSingle.tsx	40.74% <ø> (+0.74%)	⬆️
src/dialog/Dialog.tsx	76.92% <ø> (ø)
src/dialog/RenderDialog.tsx	60.34% <0.00%> (-1.79%)	⬇️
src/dialog/plugin.tsx	19.35% <ø> (ø)
src/form/FormContext.tsx	100.00% <ø> (ø)
src/form/formModel.ts	57.44% <ø> (ø)
src/message/Message.tsx	17.10% <ø> (ø)
... and 65 more

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