Add Mockito agent jar to avoid warning with Java 21+

pom.xml

@@ -15,6 +15,7 @@
     <jacocoPluginVersion>0.8.12</jacocoPluginVersion>
     <javadocPluginVersion>3.11.2</javadocPluginVersion>
     <shortJavaVersion>8</shortJavaVersion>
+    <mockitoVersion>5.14.2</mockitoVersion>
     <!-- these are properties so integration tests can use them -->
     <javaVersion>1.${shortJavaVersion}</javaVersion>
     <dependencyPluginVersion>3.8.1</dependencyPluginVersion>
@@ -141,7 +142,7 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>5.14.2</version>
+      <version>${mockitoVersion}</version>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -218,6 +219,13 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>
         <version>${dependencyPluginVersion}</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>properties</goal>
+            </goals>
+          </execution>
+        </executions>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
@@ -303,6 +311,9 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <version>${surefirePluginVersion}</version>
+        <configuration>
+          <argLine>-javaagent:${settings.localRepository}/org/mockito/mockito-core/${mockitoVersion}/mockito-core-${mockitoVersion}.jar</argLine>
+        </configuration>
       </plugin>
       <plugin>
         <groupId>org.jacoco</groupId>