Upgrade Maria DB JDBC driver to 3.1.3.

Closes #1469

Author: schauder

pom.xml

@@ -33,7 +33,7 @@
 		<db2.version>11.5.7.0</db2.version>
 		<h2.version>2.1.214</h2.version>
 		<hsqldb.version>2.6.1</hsqldb.version>
-		<mariadb-java-client.version>3.0.7</mariadb-java-client.version>
+		<mariadb-java-client.version>3.1.3</mariadb-java-client.version>
 		<mssql.version>12.2.0.jre11</mssql.version>
 		<mysql-connector-java.version>8.0.32</mysql-connector-java.version>
 		<postgresql.version>42.6.0</postgresql.version>