chore: bump version to 6.0.55

update changelog to 6.0.55

Log: update changelog to 6.0.55

Author: mhduiy

debian/changelog

@@ -1,3 +1,10 @@
+dde-session-shell (6.0.55) unstable; urgency=medium
+
+  * sync: from linuxdeepin/dde-session-shell
+  * sync: from linuxdeepin/dde-session-shell
+
+ -- zhangkun <zhangkun2@uniontech.com>  Thu, 26 Mar 2026 19:40:05 +0800
+
 dde-session-shell (6.0.54) unstable; urgency=medium
 
   * sync: from linuxdeepin/dde-session-shell