Bump version to 2.3.0 and update CHANGELOG for GCP-EU and AU region support

Author: reeshika-h

CHANGELOG.md

@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## v2.3.0
+
+### Date: 29-Sep-2025
+
+- GCP-EU and AU region support
+
 ## v2.2.0
 
 ### Date: 25-Aug-2025

pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.contentstack.sdk</groupId>
     <artifactId>java</artifactId>
-    <version>2.2.0</version>
+    <version>2.3.0</version>
     <packaging>jar</packaging>
     <name>contentstack-java</name>
     <description>Java SDK for Contentstack Content Delivery API</description>