Fix support for nested arrays in the file array
Fix support for nested arrays in the file array

With the latest patch to this file, I accidentally removed support the files array being able to contain nested arrays of files. This fixes that blooper.

Codeception/Codeception,tiger-seo/Codeception,Codeception/Codeception,Naktibalda/Codeception,janhenkgerritsen/Codeception,hubbyist/Codeception,kt81/Codeception,tasselchof/Codeception,Naktibalda/Codeception,tasselchof/Codeception,Codeception/base,hubbyist/Codeception,sergeyklay/Codeception,kt81/Codeception,tasselchof/Codeception,janhenkgerritsen/Codeception,tiger-seo/Codeception,Codeception/base,pitpit/Codeception,Naktibalda/Codeception,Codeception/base,pitpit/Codeception,Vreasy/Codeception,sergeyklay/Codeception,Vreasy/Codeception