Update package version to 2.4.0

pkg.info

@@ -1,9 +1,11 @@
 name: lxqt-build-tools
 description: Various packaging tools and scripts for LXQt applications
-version: 2.3.0
+version: 2.4.0
 revision: 1
 url: https://github.com/lxqt/lxqt-build-tools
 license: BSD-3-Clause
+maintainers:
+  - [email protected]
 architecture: any
 type: source
 depends:
@@ -14,4 +16,4 @@ downloads:
   - url: https://github.com/lxqt/lxqt-build-tools/archive/refs/tags/${BPM_PKG_VERSION}.tar.gz
     extract_to: ${BPM_SOURCE}
     extract_strip_components: 1
-    checksum: ec4e890d3bfa4c249179d5eb70e5e2f9adc73f6a86e5f79be0c7c1ca0661a593
+    checksum: 0037e9a276743d9b450a540fdf7714f4be422ef2ebd5cb16dca3579476739c46