command.php assumes that PHP_BINARY is always the PHP cli binary

[nathanjosiah]

command.php assumes that if PHP_BINARY is set that it is always the PHP cli bin. When FPM is used, the bin will be php-fpm which isn't compatible with the PHP cli.

Preconditions

1. Environment must be using PHP-FPM for PHP

Steps to reproduce

1. Run any test that uses <magentoCli/>

Expected result

1. The test executes the command correctly and proceeds.

Actual result

1. The test will fail with a 403 error upon execution of the <magentoCli/> command.

[KevinBKozan]

@nathanjosiah #217 was merged and is being included in the 2.3.6 release, thank you again for your contribution!