Update cups-pk-helper to version 0.2.7 / rev 34 via SR 994801
    
    https://build.opensuse.org/request/show/994801
    by user dimstar + dimstar_suse
    - Update to version 0.2.7:
      + Use meson build system.
      + Remove code using CUPS 1.5 and lower.
      + Remove calls to deprecated g_type_init().
      + Move D-Bus conf file to $(datadir)/dbus-1/system.d
        (bsc#1202338).
      + Don't compare signed and unsigned int.
      + Add default statements to silence compiler warnings.
      + Add Code of Conduct.
      + Updated translations.
    - Add meson BuildRequires and replace configure/make/make_install
      macros with relevant meson/meson_build/meson_install ones.