OZG-6710 update vorgang-manger version

ozgcloud-common-dependencies/pom.xml

@@ -40,7 +40,7 @@
 	<description>Dependenencies management for ozgcloud projects</description>
 
 	<properties>
-		<vorgang-manager.version>2.9.0</vorgang-manager.version>
+		<vorgang-manager.version>2.15.0-SNAPSHOT</vorgang-manager.version>
 		<license.version>1.3.0</license.version>
 
 		<maven.compiler.source>${java.version}</maven.compiler.source>