TypeError when setting config value to '[]'

[T2L]

Describe the bug
Implementation of #5587 in #5588 created a regression when setting config value to '[]'

To Reproduce
./vendor/bin/drush config:set config_ignore.settings ignored_config_entities '[]' --yes

Expected behavior
Drush successfully sets a config value to an empty array

Actual behavior
TypeError: strtolower(): Argument #1 ($string) must be of type string, array given in ./vendor/drush/drush/src/Commands/config/ConfigCommands.php on line 175

Workaround
Unknown

System Configuration

Q	A
Drush version?	12.1.0
Drupal version?	10.0.9
PHP version	8.1
OS?	Not relevant

Additional information
None

[T2L]

thanks @weitzman