UY-1274 downgrade mariadb driver back to 2.7 latest

Author: golbi

pom.xml

@@ -539,7 +539,7 @@
 			<dependency>
 				<groupId>org.mariadb.jdbc</groupId>
 				<artifactId>mariadb-java-client</artifactId>
-				<version>3.0.7</version>
+				<version>2.7.6</version>
 			</dependency>
 			<dependency>
 				<groupId>com.h2database</groupId>