Fix regression introduced in #2473 (missing this constructor call)

Author: bsideup

modules/mariadb/src/main/java/org/testcontainers/containers/MariaDBContainer.java

@@ -19,7 +19,7 @@ public class MariaDBContainer<SELF extends MariaDBContainer<SELF>> extends JdbcD
     private static final String MY_CNF_CONFIG_OVERRIDE_PARAM_NAME = "TC_MY_CNF";
 
     public MariaDBContainer() {
-        super(IMAGE + ":" + DEFAULT_TAG);
+        this(IMAGE + ":" + DEFAULT_TAG);
     }
 
     public MariaDBContainer(String dockerImageName) {

modules/mysql/src/main/java/org/testcontainers/containers/MySQLContainer.java

@@ -22,7 +22,7 @@ public class MySQLContainer<SELF extends MySQLContainer<SELF>> extends JdbcDatab
     private static final String MYSQL_ROOT_USER = "root";
 
     public MySQLContainer() {
-        super(IMAGE + ":" + DEFAULT_TAG);
+        this(IMAGE + ":" + DEFAULT_TAG);
     }
 
     public MySQLContainer(String dockerImageName) {