Update package version to 2.4.0

pkg.info

@@ -1,9 +1,11 @@
 name: qtermwidget
 description: The terminal widget for QTerminal
-version: 2.3.0
+version: 2.4.0
 revision: 1
 url: https://github.com/lxqt/qtermwidget
 license: GPL2-or-later,LGPL2-or-later,BSD-3-Clause
+maintainers:
+  - [email protected]
 architecture: any
 type: source
 depends:
@@ -14,4 +16,4 @@ downloads:
   - url: https://github.com/lxqt/qtermwidget/archive/refs/tags/${BPM_PKG_VERSION}.tar.gz
     extract_to: ${BPM_SOURCE}
     extract_strip_components: 1
-    checksum: 194b97c46fe39268864b98d0d2b510692daebb2a94e6b242515f5d98d3ab718f
+    checksum: 4595bf4be80fbb197c97aae5d054e82067ca741ffe4351f376fb1df3adc9df8b