GH-2221 - Upgrade to Neo4j-OGM 3.2.21.

Fixes #2221.

Author: michael-simons

pom.xml

@@ -41,7 +41,7 @@
 
 		<project.type>multi</project.type>
 
-		<neo4j.ogm.version>3.2.20</neo4j.ogm.version>
+		<neo4j.ogm.version>3.2.21</neo4j.ogm.version>
 		<springdata.commons>2.3.9.BUILD-SNAPSHOT</springdata.commons>
 	</properties>