Upgrade Hazelcast to 3.12.11

Closes gh-1760

Author: eleftherias

gradle/dependency-management.gradle

@@ -9,7 +9,7 @@ dependencyManagement {
 	}
 
 	dependencies {
-		dependencySet(group: 'com.hazelcast', version: '3.12.10') {
+		dependencySet(group: 'com.hazelcast', version: '3.12.11') {
 			entry 'hazelcast'
 			entry 'hazelcast-client'
 		}

spring-session-hazelcast/src/integration-test/java/org/springframework/session/hazelcast/ClientServerHazelcastIndexedSessionRepositoryITests.java

@@ -46,7 +46,7 @@
 @WebAppConfiguration
 class ClientServerHazelcastIndexedSessionRepositoryITests extends AbstractHazelcastIndexedSessionRepositoryITests {
 
-	private static GenericContainer container = new GenericContainer<>("hazelcast/hazelcast:3.12.3")
+	private static GenericContainer container = new GenericContainer<>("hazelcast/hazelcast:3.12.11")
 			.withExposedPorts(5701).withCopyFileToContainer(MountableFile.forClasspathResource("/hazelcast-server.xml"),
 					"/opt/hazelcast/hazelcast.xml");
 

spring-session-hazelcast/src/integration-test/resources/hazelcast-server.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <hazelcast xmlns="http://www.hazelcast.com/schema/config"
 		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		xsi:schemaLocation="http://www.hazelcast.com/schema/config https://www.hazelcast.com/schema/config/hazelcast-config-3.12.xsd">
+		xsi:schemaLocation="http://www.hazelcast.com/schema/config https://www.hazelcast.com/schema/config/hazelcast-config-3.13.xsd">
 
 	<network>
 		<join>