[ACL-312] Update Maven Central badge URL to Sonatype Central

This commit updates the Maven Central badge URL in the README to use the
new Sonatype Central service (maven-badges.sml.io) instead of the legacy
maven-badges.herokuapp.com URL, ensuring the badge continues to display
the latest version correctly.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: tl-luca-baggi

CHANGELOG.md

@@ -5,7 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/).
 
-## [17.5.0]
+## [17.5.1] - 2025-10-31
+### Fixed
+* Update Sonatype Central badge url in order to show latest version
+
+## [17.5.0] - 2025-10-24
 ### Added
 * Add support for Verified Payouts with user-determined beneficiary type
 * Add HPP link builder support for payouts

README.md

@@ -1,6 +1,6 @@
 # TrueLayer Java
 
-[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.truelayer/truelayer-java/badge.svg?style=flat)](https://search.maven.org/artifact/com.truelayer/truelayer-java)
+[![Maven Central](https://maven-badges.sml.io/sonatype-central/com.truelayer/truelayer-java/badge.svg?style=flat)](https://central.sonatype.com/artifact/com.truelayer/truelayer-java)
 [![javadoc](https://javadoc.io/badge2/com.truelayer/truelayer-java/javadoc.svg)](https://javadoc.io/doc/com.truelayer/truelayer-java)
 [![Coverage Status](https://coveralls.io/repos/github/TrueLayer/truelayer-java/badge.svg?t=gcGKQv)](https://coveralls.io/github/TrueLayer/truelayer-java)
 [![Scheduled acceptance tests in Sandbox environment](https://github.com/TrueLayer/truelayer-java/actions/workflows/workflow-scheduled-acceptance-tests.yml/badge.svg)](https://github.com/TrueLayer/truelayer-java/actions/workflows/workflow-scheduled-acceptance-tests.yml)

gradle.properties

@@ -1,7 +1,7 @@
 # Main properties
 group=com.truelayer
 archivesBaseName=truelayer-java
-version=17.5.0
+version=17.5.1
 
 # Artifacts properties
 project_name=TrueLayer Java