Deprecation error in Pro Search when using SQL parameters w/ PHP 8.1+

[naaador]

Description of the problem
When using SQL parameters in the exp:pro_search:results tag a deprecated warning is generated:

Error Messages

Deprecated
key(): Calling key() on an object is deprecated
ee/ExpressionEngine/Addons/pro_search/libraries/Pro_search_params.php, line 237

Environment Details:

• Version: 7.4.8
• PHP Version: 8.1

Possible Solution
On the line referenced in the error above change $query->row() to $query->row_array()