[gnome-software] (21 commits) ...Merge branch '1694-plugin-dbus-connections' into 'main'

[Philip Withnall <pwithnall src gnome org>]

Summary of changes:

  a03fc61... gs-plugin: Remove unused enum members
  aeb76df... gs-plugin: Use a typedef for the property enum
  164ae06... gs-plugin: Track properties in a static array
  a42eaf9... gs-plugin: Notify of changes to GsPlugin:flags
  8d65327... gs-plugin: Remove unused include from header
  cd93886... gs-plugin-loader: Remove unused enum members
  890dd9d... gs-plugin-loader: Use a typedef for the property enum
  f8c7d60... gs-plugin-loader: Track properties in a static array
  abe010d... gs-plugin-loader: Add additional property flags
  9316bb8... gs-plugin-loader: Add D-Bus connection properties
  c92b18b... gs-plugin-loader: Add D-Bus connection arguments to constru
  03bb2f2... gs-plugin: Add D-Bus connection properties
  406e937... malcontent: Stop connecting to D-Bus manually
  a371158... packagekit: Stop connecting to D-Bus manually
  a51f738... ci: Run D-Bus session and system buses
  e1ff679... eos-updater: Stop connecting to D-Bus manually
  2172957... rpm-ostree: Stop connecting to D-Bus manually
  6b1ef2e... gs-dbus-helper: Add a bus-connection property
  e829a03... gs-dbus-helper: Stop connecting to D-Bus manually
  1a1665c... gs-dbus-helper: Remove unused cancellable
  e0ff373... Merge branch '1694-plugin-dbus-connections' into 'main'