build: unstable release version bump tp 1.23.4
diff --git a/meson.build b/meson.build
index 6e7f00d..9d4149a 100644
--- a/meson.build
+++ b/meson.build
@@ -3,7 +3,7 @@
 
 project(
   'ModemManager', 'c',
-  version: '1.23.3',
+  version: '1.23.4',
   license: 'GPL2',
   default_options: [
     'buildtype=debugoptimized',