use ozgcloud-common release version

pom.xml

@@ -31,7 +31,7 @@
 	<parent>
 		<groupId>de.ozgcloud.common</groupId>
 		<artifactId>ozgcloud-common-parent</artifactId>
-		<version>4.7.0-SNAPSHOT</version>
+		<version>4.7.0</version>
 		<relativePath/>
 	</parent>