Bump version to 4.0.2-SNAPSHOT.

Change-Id: I47869ea408dc8dc223849fc624fadc0d20ac3b7f
diff --git a/pom.xml b/pom.xml
index e1ca015..b0c7956 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@
   <modelVersion>4.0.0</modelVersion>
 
   <groupId>eu.mulk.quarkus-googlecloud-jsonlogging</groupId>
-  <version>4.0.1</version>
+  <version>4.0.2-SNAPSHOT</version>
 
   <artifactId>quarkus-googlecloud-jsonlogging-parent</artifactId>
   <packaging>pom</packaging>