[#2270] Update JBang templates MySQL docker image

to `container-registry.oracle.com/mysql/community-server:9.3.0`

Author: DavideD

tooling/jbang/MySQLReactiveTest.java.qute

@@ -72,7 +72,7 @@ public class {baseName} {
 	}
 
     @ClassRule
-    public final static MySQLContainer<?> database = new MySQLContainer<>( imageName( "docker.io", "mysql", "9.2.0" ) );
+    public final static MySQLContainer<?> database = new MySQLContainer<>( imageName( "container-registry.oracle.com", "mysql/community-server", "9.3.0" ).asCompatibleSubstituteFor( "mysql" ) );
 
 	private Mutiny.SessionFactory sessionFactory;
 

tooling/jbang/ReactiveTest.java

@@ -229,7 +229,7 @@ public String toString() {
 	 */
 	enum Database {
 		POSTGRESQL( () -> new PostgreSQLContainer( "postgres:17.5" ) ),
-		MYSQL( () -> new MySQLContainer( "mysql:9.2.0" ) ),
+		MYSQL( () -> new MySQLContainer( "container-registry.oracle.com/mysql/community-server:9.3.0" ) ),
 		DB2( () -> new Db2Container( "docker.io/icr.io/db2_community/db2:12.1.0.0" ).acceptLicense() ),
 		MARIADB( () -> new MariaDBContainer( "mariadb:11.7.2" ) ),
 		COCKROACHDB( () -> new CockroachContainer( "cockroachdb/cockroach:v24.3.13" ) );