[Hotfix][Connector-V2][Paimon] Bump paimon-bundle version to 0.4.0-incubating (#5219)

Author: VolodymyrDuke

seatunnel-connectors-v2/connector-paimon/pom.xml

@@ -30,7 +30,7 @@
     <name>SeaTunnel : Connectors V2 : Paimon</name>
 
     <properties>
-        <paimon.version>0.4-SNAPSHOT</paimon.version>
+        <paimon.version>0.4.0-incubating</paimon.version>
     </properties>
 
     <dependencies>