GPII-3250: Change locust_desired_max_response_time back to its defaults
GPII-3250: Change locust_desired_max_response_time back to its defaults

This was increased temporarily to account for the extra time that the
first query to the preferences server was taking. Now that the indices
are warmed up, the first query should not take as long.

mrtyler/gpii-terraform,mrtyler/gpii-terraform,mrtyler/gpii-infra,mrtyler/gpii-infra,mrtyler/gpii-terraform,mrtyler/gpii-infra,mrtyler/gpii-infra