[maven-release-plugin] prepare for next development iteration

Author: irgendwr

pom.xml

@@ -11,7 +11,7 @@
 
     <groupId>de.irgendwr</groupId>
     <artifactId>graylog-plugin-telegram-notification</artifactId>
-    <version>2.5.1</version>
+    <version>2.5.2-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>${project.artifactId}</name>