Bump mockitoVersion from 5.5.0 to 5.6.0 (#1468) #1157

Job	Run time
build	6m 47s
shellcheck	4s
smoke-test (windows-2019, glassfish)	29m 26s
setup-muzzle-matrix	3m 37s
smoke-test (windows-2019, jboss)	17m 40s
smoke-test (windows-2019, jetty)	28m 34s
smoke-test (windows-2019, liberty)	39m 12s
smoke-test (windows-2019, tomcat)	35m 14s
smoke-test (windows-2019, tomee)	25m 17s
smoke-test (windows-2019, weblogic)	13m 39s
smoke-test (windows-2019, wildfly)	44m 57s
smoke-test (windows-2019, other)	17m 12s
smoke-test (ubuntu-20.04, glassfish)	14m 9s
smoke-test (ubuntu-20.04, jboss)	9m 47s
smoke-test (ubuntu-20.04, jetty)	12m 11s
smoke-test (ubuntu-20.04, liberty)	16m 16s
smoke-test (ubuntu-20.04, profiler)	10m 22s
smoke-test (ubuntu-20.04, tomcat)	9m 23s
smoke-test (ubuntu-20.04, tomee)	11m 49s
smoke-test (ubuntu-20.04, weblogic)	13m 47s
smoke-test (ubuntu-20.04, websphere)	9m 56s
smoke-test (ubuntu-20.04, wildfly)	12m 33s
smoke-test (ubuntu-20.04, other)	9m 30s
muzzle (:instrumentation:c3p0)	3m 27s
muzzle (:instrumentation:commons-dbcp2)	3m 50s
muzzle (:instrumentation:hikaricp)	2m 43s
muzzle (:instrumentation:jetty)	2m 50s
muzzle (:instrumentation:khttp-0.1)	2m 39s
muzzle (:instrumentation:liberty)	3m 36s
muzzle (:instrumentation:micrometer-1.3)	2m 46s
muzzle (:instrumentation:micrometer-1.5)	2m 36s
muzzle (:instrumentation:oracle-ucp)	2m 48s
muzzle (:instrumentation:tomcat)	3m 34s
muzzle (:instrumentation:tomcat-jdbc)	2m 42s
muzzle (:instrumentation:vibur-dbcp)	2m 52s
muzzle (:instrumentation:weblogic)	2m 58s
muzzle (:instrumentation:websphere)	3m 44s
muzzle (:instrumentation:wildfly)	4m 29s
	7h 18m 56s

Provide feedback