chore: bump version to 6.2.3 (ant-design#56813)

* chore: bump version to 6.2.3

* docs: update AGENTS.md with comprehensive development guidelines

* Update CHANGELOG.zh-CN.md

Co-authored-by: lijianan <574980606@qq.com>
Signed-off-by: afc163 <afc163@gmail.com>

* Update CHANGELOG.en-US.md

Signed-off-by: afc163 <afc163@gmail.com>

* Update CHANGELOG.zh-CN.md

Signed-off-by: afc163 <afc163@gmail.com>

---------

Signed-off-by: afc163 <afc163@gmail.com>
Co-authored-by: lijianan <574980606@qq.com>

Author: afc163