Update maven.plugin.version to v3.9.15

Author: xdev-renovate

music-maven-plugin/pom.xml

@@ -48,7 +48,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
-		<maven.plugin.version>3.9.12</maven.plugin.version>
+		<maven.plugin.version>3.9.15</maven.plugin.version>
 	</properties>
 
 	<dependencies>