Prepare next development cycle org.eclipse.yasson:yasson:3.1.0-SNAPSHOT

pom.xml

diff --git a/pom.xml b/pom.xml
index e865e22..752bbf0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
 
     <groupId>org.eclipse.yasson</groupId>
     <artifactId>yasson</artifactId>
-    <version>3.1.0-M1</version>
+    <version>3.1.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>Yasson</name>