Update package version to 2.4.0

pkg.info

@@ -1,9 +1,11 @@
 name: lxqt-session
 description: The LXQt session manager
-version: 2.3.0
+version: 2.4.0
 revision: 1
 url: https://github.com/lxqt/lxqt-session
 license: LGPL2.1-or-later
+maintainers:
+  - [email protected]
 architecture: any
 type: source
 depends:
@@ -27,4 +29,4 @@ downloads:
   - url: https://github.com/lxqt/lxqt-session/archive/refs/tags/${BPM_PKG_VERSION}.tar.gz
     extract_to: ${BPM_SOURCE}
     extract_strip_components: 1
-    checksum: 0f4620dcbbf963f27c86bdf31cfcae9413492e0600c3c8d85835cb746b209c9d
+    checksum: c9f712925dd1246693d6892334f325596d685d4341822cf8071bad17233ae922