Update dependency org.mariadb.jdbc:mariadb-java-client to v2.7.6

Author: renovate[bot]

api/jdbc/pom.xml

@@ -30,7 +30,7 @@
 		<dependency>
 			<groupId>org.mariadb.jdbc</groupId>
 			<artifactId>mariadb-java-client</artifactId>
-			<version>2.7.3</version>
+			<version>2.7.6</version>
 		</dependency>
 		<dependency>
 			<groupId>org.projectlombok</groupId>