Upgrade to Hikaricp 2.6.3

Closes gh-9744

Author: wilkinsona

spring-boot-dependencies/pom.xml

@@ -86,7 +86,7 @@
 		<hazelcast-hibernate5.version>1.2.1</hazelcast-hibernate5.version>
 		<hibernate.version>5.2.10.Final</hibernate.version>
 		<hibernate-validator.version>5.4.1.Final</hibernate-validator.version>
-		<hikaricp.version>2.6.2</hikaricp.version>
+		<hikaricp.version>2.6.3</hikaricp.version>
 		<hsqldb.version>2.4.0</hsqldb.version>
 		<htmlunit.version>2.27</htmlunit.version>
 		<httpasyncclient.version>4.1.3</httpasyncclient.version>