Bump patch version to '2.2.3'

b7a77861 · Guillaume Poirier-Morency · 1335b273 · b7a77861
Commit b7a77861 authored Jan 22, 2020 by Guillaume Poirier-Morency
--- a/meson.build
+++ b/meson.build
 project('mirbooking', 'c',
-        version: '2.2.2',
+        version: '2.2.3',
        default_options: 'c_std=gnu11',
        meson_version: '>=0.46.0')