Make mockito-core a test dependency

services/git-bridge/pom.xml

@@ -139,6 +139,7 @@
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
             <version>1.10.19</version>
+            <scope>test</scope>
         </dependency>
         <!-- https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk -->
         <dependency>