[pom] Updated mysql-connector-java to 5.1.38

Author: hazendaz

pom.xml

@@ -247,7 +247,7 @@
     <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
-      <version>5.1.29</version>
+      <version>5.1.38</version>
       <scope>test</scope>
     </dependency>
   </dependencies>