add mockito dependency to sonar pom.xml to fix maven-dsl build

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1822785 13f79535-47bb-0310-9956-ffa450edef68

sonar/pom.xml

@@ -65,6 +65,7 @@
 		<!-- define some of the third-party or plugin-versions globally to use the same in all modules -->
 		<xmlbeans.version>2.6.0</xmlbeans.version>
 		<junit.version>4.12</junit.version>
+		<mockito.version>2.13.0</mockito.version>
 		<maven.plugin.resources.version>3.0.1</maven.plugin.resources.version>
 		<maven.plugin.jar.version>3.0.1</maven.plugin.jar.version>
 		<maven.plugin.clean.version>3.0.0</maven.plugin.clean.version>
@@ -136,6 +137,12 @@
 			<version>${junit.version}</version>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.mockito</groupId>
+			<artifactId>mockito-core</artifactId>
+			<version>${mockito.version}</version>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 
 	<profiles>