Update version number for 5.23.1

GIT_SILENT

.gitlab-ci.yml

@@ -1,6 +0,0 @@
-# SPDX-FileCopyrightText: None
-# SPDX-License-Identifier: CC0-1.0
-
-include:
-  - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/linux.yml
-  - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/freebsd.yml

.kde-ci.yml

@@ -1,7 +0,0 @@
-# SPDX-FileCopyrightText: None
-# SPDX-License-Identifier: CC0-1.0
-
-Dependencies:
-- 'on': ['@all']
-  'require':
-    'frameworks/extra-cmake-modules': '@latest'

CMakeLists.txt

@@ -4,7 +4,7 @@
 cmake_minimum_required(VERSION 3.16)
 
 project(layershellqt)
-set(PROJECT_VERSION "5.24.1")
+set(PROJECT_VERSION "5.23.1")
 set(PROJECT_VERSION_MAJOR 5)
 
 set(CMAKE_C_STANDARD 99)

src/qwaylandlayershell_p.h

@@ -21,7 +21,7 @@ class LAYERSHELLQT_EXPORT QWaylandLayerShell : public QtWayland::zwlr_layer_shel
 {
 public:
     QWaylandLayerShell(::wl_registry *registry, uint32_t id, uint32_t version);
-    ~QWaylandLayerShell() override;
+    virtual ~QWaylandLayerShell();
 
     QWaylandLayerSurface *createLayerSurface(QtWaylandClient::QWaylandWindow *window);
     // TODO: Popups

src/qwaylandlayersurface_p.h

@@ -23,7 +23,7 @@ class LAYERSHELLQT_EXPORT QWaylandLayerSurface : public QtWaylandClient::QWaylan
     Q_OBJECT
 public:
     QWaylandLayerSurface(QWaylandLayerShell *shell, QtWaylandClient::QWaylandWindow *window);
-    ~QWaylandLayerSurface() override;
+    virtual ~QWaylandLayerSurface();
 
     bool isExposed() const override
     {