Cannot get passed this -
Migrating: 2021_02_09_122930_migrate_to_utf8mb4
In Connection.php line 692:
SQLSTATE[HY000]: General error: 1709 Index column size too large. The maximum column size is 767 bytes (SQL: ALTER TABLE config
MODIFY config_name
varchar(255)
CHARACTER SET utf8mb4
COLLATE utf8mb4_unicode_ci
NOT NULL 
In Exception.php line 18:
SQLSTATE[HY000]: General error: 1709 Index column size too large. The maximum column size is 767 bytes
In PDOConnection.php line 53:
SQLSTATE[HY000]: General error: 1709 Index column size too large. The maximum column size is 767 bytes