gstreamer: Require the same version for all GStreamer deps

We don't want people to have different GStramer library versions.

GStreamer now is developed in a monorepo, so the versions are in sync.

meson.build

@@ -26,6 +26,7 @@ cloudproviders_req = '>= 0.3.1'
 xkbcommon_req      = '>= 0.2.0'
 sysprof_req        = '>= 3.38.0'
 vulkan_req         = '>= 1.3'
+gstreamer_req      = '>= 1.23.1'
 
 fs = import('fs')
 gnome = import('gnome')