Bump development version to 1.3.0-SNAPSHOT

Author: github-actions

pom.xml

@@ -4,7 +4,7 @@
 
   <groupId>com.getindata</groupId>
   <artifactId>flink-python-loader</artifactId>
-  <version>1.2.0</version>
+  <version>1.3.0-SNAPSHOT</version>
   <packaging>jar</packaging>
 
   <name>flink-python-loader</name>