chore: update debian changelog for version 6.5.29 (#358)

Updated the debian changelog file to add a new entry for version 6.5.29.
The changelog now includes the new version number, release status,
urgency level, and maintainer information with timestamp. This is a
standard maintenance update following the previous version 6.5.28.

chore: 更新 debian 变更日志至版本 6.5.29

更新了 debian 变更日志文件，为版本 6.5.29 添加了新条目。变更日志现在包
含新版本号、发布状态、紧急级别以及带有时间戳的维护者信息。这是继先前版本
6.5.28 之后的标准维护更新。

Author: Kakueeen

debian/changelog

@@ -1,3 +1,9 @@
+deepin-deb-installer (6.5.29) unstable; urgency=medium
+
+  * fix bugs
+
+ -- Liu Zhangjian <liuzhangjian@uniontech.com>  Thu, 23 Oct 2025 19:28:30 +0800
+
 deepin-deb-installer (6.5.28) unstable; urgency=medium
 
   * fix: implement path transformation for package selection