Log into MySQL from command line

mysql -u root -p

Select the correct database

USE wordpress_db;

Print current users

SELECT * FROM wp_users;

Should get something similar to the following

mysql> SELECT * FROM wp_users
     -> ;
 +----+------------+------------------------------------+---------------+---------------------------+----------+---------------------+------------------------------------+-------------+--------------+
 | ID | user_login | user_pass                          | user_nicename | user_email                | user_url | user_registered     | user_activation_key                | user_status | display_name |
 +----+------------+------------------------------------+---------------+---------------------------+----------+---------------------+------------------------------------+-------------+--------------+
 |  1 | admin    | 5f4dcc3b5aa765d61d8327deb882cf99 | admin       | bob@incredigeek.com       |          | 2018-08-09 10:10:42 |                                    |           0 | admin        |
 |  2 | bob      | 210805fb52a13251f4bedc7e725e575a | bob         | bob@incredigeek.com       |          | 2019-11-01 11:31:23 |                                    |           0 | bob smith    |
 +----+------------+------------------------------------+---------------+---------------------------+----------+---------------------+------------------------------------+-------------+--------------+
 3 rows in set (0.00 sec)
 mysql>

To update the password use

UPDATE wp_users SET user_pass = MD5('NewPass') WHERE ID=1;

The MD5 hashes the NewPass and adds it to the database. You can print the users again to verify the hash changed.

You should now be able to login using the new password you configure.