[github-action] Increment version after release of 0.13.1

Author: github-actions[bot]

pom.xml

@@ -10,7 +10,7 @@
 
     <groupId>io.gdcc</groupId>
     <artifactId>parent</artifactId>
-    <version>0.13.1</version>
+    <version>0.13.2-SNAPSHOT</version>
 
     <organization>
         <name>Global Dataverse Community Consortium</name>