mate-control-center: update to 1.24.2

Change log:

mate-control-center 1.24.2

  * Translations update
  * Default applications: Add flac/x-flac format (mime-type) for media

mate-control-center 1.24.1

  * Translations update
  * mate-theme-info: Use of memory after it is freed
  * build: silent build warnings for distcheck
  * use default MATE_COMPILE_WARNINGS level
  * Port libslab_handle_g_error to the built-in GLib logging framework
  * mate-about-me: Fix memory leak
  * appearance: Fix memory leak
  * Do not collect the translation for Icon

(gutteridge)