Repro: Disable telemetry and upgrade to v5.12
Observed: NPS plugin is enabled but fails to start up, printing a log error
Expected: Do not enable the NPS plugin at all if telemetry is disabled on the server
When first upgrading to 5.12.1 or higher, the NPS plugin should be automatically enabled as long as EnableDiagnostics is set to true. When doing a fresh install on either of those versions, the NPS plugin should also be enabled.