feat(broker): Console resend metrics

[teogeb]

Update ConsoleMetrics to read the resend metrics from the data provided by DataQueryEndpoints. The previous implementation used websocket connection data, and it was always empty as legacyWebsocket plugin has been removed.

Previous data:

Total ongoing resends: %d (mean age %d ms)

Current data:

Resends:
- last: %d requests/s
- from: %d requests/s
- range: %d requests/s

The outBytes and outMessages metrics from DataQueryEndpoints aren't included as no data was produced for those metrics.

Remove also broker connections count metrics in ConsoleMetrics as the non-existing websocket data was used there, too.