Upgrade to Neo4j Ogm 3.1.8

Closes gh-16125

Author: wilkinsona

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -132,7 +132,7 @@
 		<mysql.version>5.1.47</mysql.version>
 		<narayana.version>5.8.2.Final</narayana.version>
 		<nekohtml.version>1.9.22</nekohtml.version>
-		<neo4j-ogm.version>3.1.7</neo4j-ogm.version>
+		<neo4j-ogm.version>3.1.8</neo4j-ogm.version>
 		<netty.version>4.1.33.Final</netty.version>
 		<nio-multipart-parser.version>1.1.0</nio-multipart-parser.version>
 		<postgresql.version>42.2.5</postgresql.version>