SLING-5677 switch mockito dependency to test

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1759850 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index ab4ed47..136336d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -130,6 +130,7 @@
       <groupId>org.mockito</groupId>
       <artifactId>mockito-all</artifactId>
       <version>1.10.19</version>
+      <scope>test</scope>
     </dependency>
   </dependencies>