Bump junit-pioneer from 0.7.0 to 0.9.0
Bump junit-pioneer from 0.7.0 to 0.9.0

Fixes gh-1888

spring-cloud-incubator/spring-cloud-gateway,spencergibb/spring-cloud-gateway,spencergibb/spring-cloud-gateway,spring-cloud-incubator/spring-cloud-gateway