Update mariadb-java-client to 2.0.1

Mariadb connector now requires java 8+

See https://github.com/MariaDB/mariadb-connector-j/releases

Change-Id: I881d212aa6dcdbe266b2b76bcf3dac7c6f2e0b74

pom.xml

diff --git a/pom.xml b/pom.xml
index 0b61a2d..89258d9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -525,7 +525,7 @@
     <dependency>
       <groupId>org.mariadb.jdbc</groupId>
       <artifactId>mariadb-java-client</artifactId>
-      <version>1.5.9</version>
+      <version>2.0.1</version>
       <scope>test</scope>
     </dependency>