change from docker tests to kudu-test-utils

As of version 1.9.0, Kudu ships with an experimental feature called the binary test JAR. This feature gives people who want to test against Kudu the capability to start a Kudu "mini cluster" from Java or another JVM-based language without having to first build Kudu locally

https://kudu.apache.org/docs/developing.html#_jvm_based_integration_testing