Client does not support authentication protocol requested by server; consider upgrading MariaDB client

Question

i have a vps when i try to connect to mysql server i see this error in ghmattimysql.log file

ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server; consider upgrading MariaDB client

my Server version: 10.3.27-MariaDB-0+deb10u1 Debian 10

and that's mysql.cfg file

set mysql_connection_string "mysql://test:testpasswd@***.***.***.**/qbus"
set mysql_debug 0
set mysql_debug_output "both"
set mysql_slow_query_warning 100