increment version number to 0.23.12

NEWS

+ver 0.23.12 (not yet released)
+
 ver 0.23.11 (2022/11/28)
 * database
   - simple: move default database to ~/.cache/mpd/db from ~/.cache/mpd.db

android/AndroidManifest.xml

@@ -2,8 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="org.musicpd"
           android:installLocation="auto"
-          android:versionCode="70"
-          android:versionName="0.23.11">
+          android:versionCode="71"
+          android:versionName="0.23.12">
 
   <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="30"/>
 

meson.build

 project(
   'mpd',
   ['c', 'cpp'],
-  version: '0.23.11',
+  version: '0.23.12',
   meson_version: '>= 0.56.0',
   default_options: [
     'c_std=c11',