Upgrade test dependencies

Author: eleftherias

gradle/dependency-management.gradle

@@ -1,7 +1,7 @@
 dependencyManagement {
 	imports {
 		mavenBom 'io.projectreactor:reactor-bom:2020.0.0-RC1'
-		mavenBom 'org.junit:junit-bom:5.6.2'
+		mavenBom 'org.junit:junit-bom:5.7.0'
 		mavenBom 'org.springframework:spring-framework-bom:5.3.0-M1'
 		mavenBom 'org.springframework.data:spring-data-bom:2020.0.0-M1'
 		mavenBom 'org.springframework.security:spring-security-bom:5.4.0'
@@ -21,16 +21,16 @@ dependencyManagement {
 		dependency 'com.oracle.database.jdbc:ojdbc8:19.6.0.0'
 		dependency 'com.zaxxer:HikariCP:3.4.5'
 		dependency 'edu.umd.cs.mtc:multithreadedtc:1.01'
-		dependency 'io.lettuce:lettuce-core:5.3.1.RELEASE'
+		dependency 'io.lettuce:lettuce-core:5.3.3.RELEASE'
 		dependency 'javax.annotation:javax.annotation-api:1.3.2'
 		dependency 'javax.servlet:javax.servlet-api:4.0.1'
 		dependency 'junit:junit:4.13'
-		dependency 'mysql:mysql-connector-java:8.0.20'
+		dependency 'mysql:mysql-connector-java:8.0.21'
 		dependency 'org.apache.derby:derby:10.14.2.0'
-		dependency 'org.assertj:assertj-core:3.16.1'
-		dependency 'org.hsqldb:hsqldb:2.5.0'
-		dependency 'org.mariadb.jdbc:mariadb-java-client:2.6.1'
-		dependency 'org.mockito:mockito-core:3.3.3'
-		dependency 'org.postgresql:postgresql:42.2.14'
+		dependency 'org.assertj:assertj-core:3.17.2'
+		dependency 'org.hsqldb:hsqldb:2.5.1'
+		dependency 'org.mariadb.jdbc:mariadb-java-client:2.6.2'
+		dependency 'org.mockito:mockito-core:3.5.10'
+		dependency 'org.postgresql:postgresql:42.2.16'
 	}
 }

spring-session-samples/gradle/dependency-management.gradle

@@ -9,7 +9,7 @@ dependencyManagement {
 		dependency 'javax.servlet.jsp.jstl:javax.servlet.jsp.jstl-api:1.2.2'
 		dependency 'javax.servlet.jsp:javax.servlet.jsp-api:2.3.3'
 		dependency 'org.apache.taglibs:taglibs-standard-jstlel:1.2.5'
-		dependency 'org.seleniumhq.selenium:htmlunit-driver:2.36.0'
+		dependency 'org.seleniumhq.selenium:htmlunit-driver:2.43.1'
 		dependency 'org.slf4j:jcl-over-slf4j:1.7.30'
 		dependency 'org.slf4j:log4j-over-slf4j:1.7.30'
 		dependency 'org.webjars:bootstrap:2.3.2'