Change scope to test for connection pool

Author: Jan-M

pom.xml

@@ -172,6 +172,7 @@
             <groupId>com.zaxxer</groupId>
             <artifactId>HikariCP</artifactId>
             <version>2.4.7</version>
+            <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.postgresql</groupId>