Prepare release org.eclipse.yasson:yasson:3.1.0-M2

pom.xml

diff --git a/pom.xml b/pom.xml
index dde3171..ca7119a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
 
     <groupId>org.eclipse.yasson</groupId>
     <artifactId>yasson</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0-M2</version>
     <packaging>jar</packaging>
     <name>Yasson</name>
 

yasson-jmh/pom.xml

diff --git a/yasson-jmh/pom.xml b/yasson-jmh/pom.xml
index 87e4cc8..c506ba0 100644
--- a/yasson-jmh/pom.xml
+++ b/yasson-jmh/pom.xml
@@ -14,7 +14,7 @@
 
     <groupId>org.eclipse.yasson</groupId>
     <artifactId>yasson-jmh</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0-M2</version>
     <description>This is a performance testing project for Yasson. It leverages a JMH technology.
         See https://openjdk.java.net/projects/code-tools/jmh/.
     </description>

yasson-tck/pom.xml

diff --git a/yasson-tck/pom.xml b/yasson-tck/pom.xml
index df86bf4..fa1a27c 100644
--- a/yasson-tck/pom.xml
+++ b/yasson-tck/pom.xml
@@ -14,7 +14,7 @@
 
     <groupId>org.eclipse.yasson</groupId>
     <artifactId>yasson-tck</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0-M2</version>
 
     <properties>
         <maven.compiler.release>17</maven.compiler.release>