AttributeError: 'DogStatsd' object has no attribute '_transport'

[sentry-io]

Sentry Issue: EXPERIMENTER-STAGE-CV

AttributeError: 'DogStatsd' object has no attribute '_transport'
(7 additional frame(s) were not displayed)
...
  File "experimenter/kinto/tasks.py", line 64, in nimbus_check_kinto_push_queue_by_collection
    metrics.incr(f"check_kinto_push_queue_by_collection:{collection}.started")

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