chore: bump version to 6.0.15

release version to 6.0.15

Log:

Author: wangfei

debian/changelog

@@ -1,3 +1,11 @@
+startdde (6.0.15) unstable; urgency=medium
+
+  * chore: fix archlinux build
+  * feat: 添加检查是否支持色温的接口
+  * feat: 支持插件设置护眼模式
+
+ -- Wang Fei <wangfei@deepin.org>  Mon, 08 Jul 2024 13:37:56 +0800
+
 startdde (6.0.14) unstable; urgency=medium
 
   * fix: never set cursorSize for deepin-kwin