Upgrade to Hazelcast 3.5.5

Closes gh-5214

Author: wilkinsona

spring-boot-dependencies/pom.xml

@@ -75,7 +75,7 @@
 		<gson.version>2.3.1</gson.version>
 		<h2.version>1.4.191</h2.version>
 		<hamcrest.version>1.3</hamcrest.version>
-		<hazelcast.version>3.5.4</hazelcast.version>
+		<hazelcast.version>3.5.5</hazelcast.version>
 		<hibernate.version>4.3.11.Final</hibernate.version>
 		<hibernate-validator.version>5.2.2.Final</hibernate-validator.version>
 		<hikaricp.version>2.4.3</hikaricp.version>