Switch to MariaDBDialect in Hibernate configuration

Replaced `MySQLDialect` with `MariaDBDialect` in `hibernate.cfg.xml` to ensure compatibility with MariaDB. This change aligns the Hibernate dialect with the underlying database and avoids potential SQL compatibility issues.

src/main/resources/hibernate.cfg.xml

@@ -4,7 +4,7 @@
 <hibernate-configuration>
     <session-factory>
 
-        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
+        <property name="hibernate.dialect">org.hibernate.dialect.MariaDBDialect</property>
         <property name="hibernate.connection.driver_class">com.mysql.cj.jdbc.Driver</property>
         <property name="hibernate.connection.provider_class">org.hibernate.hikaricp.internal.HikariCPConnectionProvider</property>
         <!-- The schema is owned by Flyway; Hibernate only checks that the entities match it. -->