Upgrade to Maven Wrapper 3.9.9.

See #602

Author: mp911de

.mvn/wrapper/maven-wrapper.properties

@@ -1,2 +1,2 @@
-#Thu Aug 08 10:17:14 CEST 2024
-distributionUrl=https\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.8/apache-maven-3.9.8-bin.zip
+#Thu Nov 07 09:50:53 CET 2024
+distributionUrl=https\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip