build: Bump Meson dependency to 0.59.0

Required for switching to `gnome.post_install()` function
with `update_desktop_database` kwarg.

Even newer version is available in bullseye-backports in Debian
so it should probably be fine.

.gitlab-ci.yml

@@ -7,7 +7,7 @@ cache:
     - _ccache/
 
 variables:
-  DEBIAN_IMAGE: "registry.freedesktop.org/pwithnall/malcontent/debian-unstable:v3"
+  DEBIAN_IMAGE: "registry.freedesktop.org/pwithnall/malcontent/debian-unstable:v4"
   MESON_TEST_TIMEOUT_MULTIPLIER: 2
   G_MESSAGES_DEBUG: all
   MESON_COMMON_OPTIONS: "--buildtype debug --wrap-mode=nodownload"

.gitlab-ci/debian-unstable.Dockerfile

@@ -30,7 +30,7 @@ RUN locale-gen C.UTF-8 && /usr/sbin/update-locale LANG=C.UTF-8
 
 ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8
 
-RUN pip3 install meson==0.57.0
+RUN pip3 install meson==0.59.4
 
 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}

meson.build

@@ -1,6 +1,6 @@
 project('malcontent', 'c',
   version : '0.11.0',
-  meson_version : '>= 0.57.0',
+  meson_version : '>= 0.59.0',
   license: ['LGPL-2.1-or-later', 'GPL-2.0-or-later'],
   default_options : [
     'buildtype=debugoptimized',