GROOVY-8985: Bump junit to 5.4.0(closes #875)
GROOVY-8985: Bump junit to 5.4.0(closes #875)

jwagenleitner/groovy,jwagenleitner/groovy,apache/incubator-groovy,apache/groovy,paulk-asert/incubator-groovy,jwagenleitner/incubator-groovy,paulk-asert/groovy,jwagenleitner/groovy,apache/groovy,shils/incubator-groovy,armsargis/groovy,apache/incubator-groovy,shils/groovy,shils/incubator-groovy,shils/groovy,armsargis/groovy,jwagenleitner/incubator-groovy,armsargis/groovy,apache/incubator-groovy,paulk-asert/incubator-groovy,apache/groovy,apache/groovy,apache/incubator-groovy,paulk-asert/incubator-groovy,jwagenleitner/incubator-groovy,shils/incubator-groovy,jwagenleitner/groovy,shils/groovy,paulk-asert/groovy,armsargis/groovy,paulk-asert/groovy,paulk-asert/groovy,shils/groovy,paulk-asert/incubator-groovy,paulk-asert/incubator-groovy,shils/incubator-groovy,jwagenleitner/incubator-groovy