chore: bump version to 1.99.6 (linuxdeepin#113)

release 1.99.6

Log: bump version to 1.99.6

Author: xionglinlin

debian/changelog

@@ -1,3 +1,10 @@
+dde-session (1.99.6) unstable; urgency=medium
+
+  * chore: add xcb to QT_QPA_PLATFORM fallback
+  * fix: the environment variable is set incorrectly
+
+ -- xionglinlin <[email protected]>  Sat, 14 Dec 2024 14:33:18 +0800
+
 dde-session (1.99.5) unstable; urgency=medium
 
   * move desktop in a separate process