docs: changelog 5.12.1 (#46251)

* docs: changelog 5.12.1

* docs: update

CHANGELOG.en-US.md

@@ -16,6 +16,13 @@ tag: vVERSION
 
 ---
 
+## 5.12.1
+
+`2023-12-04`
+
+- 🐞 MISC: Fix missing color less variables converted from token. [#46250](https://github.com/ant-design/ant-design/pull/46250)
+- 🐞 Fix Notification title overlaps with the close icon when it is too long。 [#46211](https://github.com/ant-design/ant-design/pull/46211) [@zh-lx](https://github.com/zh-lx)
+
 ## 5.12.0
 
 `2023-12-04`

CHANGELOG.zh-CN.md

@@ -16,6 +16,13 @@ tag: vVERSION
 
 ---
 
+## 5.12.1
+
+`2023-12-04`
+
+- 🐞 MISC: 修复 token 转换 less 变量丢失的问题。[#46250](https://github.com/ant-design/ant-design/pull/46250)
+- 🐞 修复 Notification 标题太长时会与关闭图标重叠的问题。[#46211](https://github.com/ant-design/ant-design/pull/46211) [@zh-lx](https://github.com/zh-lx)
+
 ## 5.12.0
 
 `2023-12-04`

package.json

@@ -1,6 +1,6 @@
 {
   "name": "antd",
-  "version": "5.12.0",
+  "version": "5.12.1",
   "description": "An enterprise-class UI design language and React components implementation",
   "keywords": [
     "ant",