Upgrade test dependencies

Author: vpavic

gradle/dependency-management.gradle

@@ -17,16 +17,16 @@ dependencyManagement {
 		dependency 'com.h2database:h2:1.4.197'
 		dependency 'com.microsoft.sqlserver:mssql-jdbc:7.0.0.jre8'
 		dependency 'edu.umd.cs.mtc:multithreadedtc:1.01'
-		dependency 'io.lettuce:lettuce-core:5.1.0.M1'
+		dependency 'io.lettuce:lettuce-core:5.1.0.RC1'
 		dependency 'javax.annotation:javax.annotation-api:1.3.2'
 		dependency 'javax.servlet:javax.servlet-api:4.0.1'
 		dependency 'junit:junit:4.12'
 		dependency 'mysql:mysql-connector-java:8.0.12'
 		dependency 'org.apache.derby:derby:10.14.2.0'
 		dependency 'org.assertj:assertj-core:3.11.1'
 		dependency 'org.hsqldb:hsqldb:2.4.1'
-		dependency 'org.mariadb.jdbc:mariadb-java-client:2.2.6'
-		dependency 'org.mockito:mockito-core:2.21.0'
+		dependency 'org.mariadb.jdbc:mariadb-java-client:2.3.0'
+		dependency 'org.mockito:mockito-core:2.22.0'
 		dependency 'org.postgresql:postgresql:42.2.5'
 	}
 }