Avoid constant from deprecated PostgreSQLContainer

Author: ebyhr

plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/catalog/jdbc/TestingIcebergJdbcServer.java

@@ -24,7 +24,7 @@
 import java.sql.Statement;
 
 import static java.lang.String.format;
-import static org.testcontainers.containers.PostgreSQLContainer.POSTGRESQL_PORT;
+import static org.testcontainers.postgresql.PostgreSQLContainer.POSTGRESQL_PORT;
 
 public class TestingIcebergJdbcServer
         implements Closeable