Increase timeout for import tests, for low throughput on 8vCPU
Increase timeout for import tests, for low throughput on 8vCPU

Change-Id: I4205df6ac3c9bae408a75e0de7ba4e8897891551
Reviewed-on: https://review.couchbase.org/c/perfrunner/+/173731
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Bo-Chun Wang <bb86fd206c9c35341feb9b50e74a74a83e254d63@couchbase.com>

couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner