meson.build: fix the version number (#1432)

Co-authored-by: Jordan Bayles <bayles.jordan@gmail.com>

meson.build

diff --git a/meson.build b/meson.build
index 8070361..e6ba08c 100644
--- a/meson.build
+++ b/meson.build
@@ -9,7 +9,7 @@
   # 2. /include/json/version.h
   # 3. /CMakeLists.txt
   # IMPORTANT: also update the SOVERSION!!
-  version : '1.9.4',
+  version : '1.9.5',
   default_options : [
     'buildtype=release',
     'cpp_std=c++11',