BAU: Temporary logging to diagnose timeouts
BAU: Temporary logging to diagnose timeouts

We're seeing intermittent timeouts for the `response-processing`
endpoint in the perf tests which inform the ZDD job in the pipeline.

It's quite hard to determine what's causing it as we get no logging back
from the frontend unless the request completes.

alphagov/verify-frontend,alphagov/verify-frontend,alphagov/verify-frontend,alphagov/verify-frontend