docs: add pr changelog (#4461)

Author: anlyyao

packages/tdesign-miniprogram/.changelog/pr-4428.md

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+---
+pr_number: 4428
+contributor: anlyyao
+---
+
+- feat(Typography): 新增 `Typography` 排版组件 @anlyyao ([#4428](https://github.com/Tencent/tdesign-miniprogram/pull/4428))

packages/tdesign-miniprogram/.changelog/pr-4454.md

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+---
+pr_number: 4454
+contributor: anlyyao
+---
+
+- feat(Upload): 新增 `theme` 属性，支持列表布局 @anlyyao ([#4454](https://github.com/Tencent/tdesign-miniprogram/pull/4454))
+- fix(Upload): 修复禁用态文件样式错误（禁用态下移除操作按钮）@anlyyao ([#4454](https://github.com/Tencent/tdesign-miniprogram/pull/4454))
+