Symfony version(s) affected: 5.1.3

Description
The ignoreVCSIgnored method says it can make the finder skip over all ignored files, however this is not the case. It assumes there is only exactly one .gitignore file in the root of the directory the finder is "in".

It is reasonable (and probably desirable) that the finder does not recursively search upwards for .gitignore files, however, unreasonable that it does not respect ignore files in subdirectories and mandates the "in" directory must have an ignore file.