Update package version to 6.12.0

info.yml

@@ -1,6 +1,6 @@
 name: qt6-serialport
 description: Provides access to hardware and virtual serial ports
-version: 6.11.2
+version: 6.12.0
 revision: 1
 url: https://www.qt.io/
 license: GPL3-only,LGPL3-only,LicenseRef-Qt-Commercial,Qt-GPL-exception-1.0
@@ -20,4 +20,4 @@ downloads:
     type: git
     clone_to: ${BPM_SOURCE}
     git_branch: v${BPM_PKG_VERSION}
-    checksum: 1bc5803a397f1f22b7b305a751f78ad1c6997cc4
+    checksum: beb4c887f3b886447cf86592fa65b8b9c1d6e312