GH-1113 - Upgrade to ArchUnit 1.3.1.

Author: odrotbohm

pom.xml

@@ -33,7 +33,7 @@
 
 	<properties>
 
-		<archunit.version>1.3.0</archunit.version>
+		<archunit.version>1.3.1</archunit.version>
 		<artifactory-maven-plugin.version>3.6.2</artifactory-maven-plugin.version>
 		<flapdoodle-mongodb.version>4.16.1</flapdoodle-mongodb.version>
 		<jgrapht.version>1.5.2</jgrapht.version>