* Add dummy handler type for load testing

 * Update deps (inc latest phonenumbers)

 * Include redis pool active/idle counts in heartbeat stats

 * Bump redis pool size to 64

 * More closing of redis connections and logging of errors

 * Agressively close redis connections

 * Use redisx.NewIntervalSet to track sent message ids

 * Mark as sent in redis any message send that does result in status errored
 * Remove request for redis connection that wasn't being used in D360 handler

 * Tweak healthcheck for redis to timeout after a second

 * Don't set next attempt for incoming messages
 * Log error when marking queue job for outgoing message complete fails

 * Ignore reels as attachments on FB channels

 * Update deps including phonenumbers to get latest metadata

 * Ignore reels as attachments on FBA/IG channels