Resolves: dbus#146

The launchd plist file for macOS contains the deprecated fields
`OnDemand` and `ServiceIPC`. These fields were deprecated in macOS 10.5
and, since 10.4 and below are well beyond their support lifespans,
they should be removed and replaced appropriately.
11 jobs for macos-launchd-deprecation in 10 minutes and 21 seconds (queued for 3 seconds)