fix: remove type for param
fix: remove type for param

To return validation error (not TypeError exception), it must accept all type values.
And called from a file without `strict_types`, implicit type conversion occurs.

bcit-ci/CodeIgniter4,kenjis/CodeIgniter4,kenjis/CodeIgniter4,kenjis/CodeIgniter4,bcit-ci/CodeIgniter4,bcit-ci/CodeIgniter4,bcit-ci/CodeIgniter4,kenjis/CodeIgniter4,kenjis/CodeIgniter4,bcit-ci/CodeIgniter4