Upgrade mockito from 5.12.0 to 5.15.2

Author: sikeoka

geowebcache/pom.xml

@@ -95,7 +95,7 @@
     <lint>deprecation,unchecked</lint>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <jclouds.version>2.3.0</jclouds.version>
-    <mockito.version>5.12.0</mockito.version>
+    <mockito.version>5.15.2</mockito.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <skipITs>${skipTests}</skipITs>
   </properties>