Update dependency org.mockito:mockito-core to v5.15.2 (#599)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

pom.xml

@@ -85,7 +85,7 @@
     <slf4j.version>2.0.16</slf4j.version>
     <log4j.version>1.2.17</log4j.version>
 
-    <mockito.version>5.14.2</mockito.version>
+    <mockito.version>5.15.2</mockito.version>
     <junit.version>4.13.2</junit.version>
     <findbugs-annotations.version>3.0.1</findbugs-annotations.version>
   </properties>