chore(debian): update version to 0.5.5

Log: new tag

Author: wineee

debian/changelog

@@ -1,3 +1,15 @@
+treeland-protocols (0.5.5) unstable; urgency=medium
+
+  * chore: bump version to 0.5.5
+  * feat: add prelaunch splash screen protocol v2
+  * chore(debian): update version to 0.5.4
+  * chore: rename move_xwayland_surface to set_position_relative
+  * feat: add treeland_wallpaper_v1 protocol for per-output wallpapers
+  * feat: expose a method to move XWayland window position relative to
+    wl_surface
+
+ -- rewine <luhongxu@uniontech.com>  Sat, 28 Feb 2026 13:54:07 +0800
+
 treeland-protocols (0.5.4) unstable; urgency=medium
 
   * chore: rename move_xwayland_surface to set_position_relative