Upgrade to Hibernate 5.2.9.Final

Closes gh-8750

spring-boot-dependencies/pom.xml

@@ -86,7 +86,7 @@
 		<hamcrest.version>1.3</hamcrest.version>
 		<hazelcast.version>3.7.6</hazelcast.version>
 		<hazelcast-hibernate5.version>1.1.3</hazelcast-hibernate5.version>
-		<hibernate.version>5.2.8.Final</hibernate.version>
+		<hibernate.version>5.2.9.Final</hibernate.version>
 		<hibernate-validator.version>5.4.0.Final</hibernate-validator.version>
 		<hikaricp.version>2.5.1</hikaricp.version>
 		<hsqldb.version>2.3.3</hsqldb.version>