Refactor array_map and array_filter

[HPWebdeveloper]

This Pull Request introduces a refactoring of the getPugEngine method within the ServiceProvider. The primary objectives are to simplify the logic for enhanced readability and to improve overall performance.

[kylekatarnls]

array_map and array_filter was slow in the past (when they were actually PHP-coded functions), but have been rewritten in C and since they are actually faster than loops (and creating intermediate variables) in many situations (https://medium.com/@visheshahuja/php-array-map-vs-foreach-loop-18488c95aa18)

So unless some benchmark using recent PHP version, I wouldn't bet performance is a win here.

Also codes before and after here are not equivalent, it might break some untested cases, the readability improvement does not sound worthy to me as a first sight.