Update event queue metric name to be more descriptive.
Update event queue metric name to be more descriptive.

Co-Authored-By: Matthias Rampke <8e7be411ad89ade93d144531f3925d0bb4011004@soundcloud.com>
Signed-off-by: Clayton O'Neill <7833bf63e3b444bee2fe361e4dae2494a492a313@github.com>

prometheus/statsd_exporter,prometheus/statsd_bridge