Symfony version(s) affected: Flex 3.4

Description
After installed symfony/test-pack i can't run phpunit

How to reproduce
Run : composer require --dev test
Write a test
Run : php ./bin/phpunit

Additional context
Logs error : https://hastebin.com/tuyebixizo.tex

Possible Solution
Nothing is indicated on the documentation but i think this is a problem linked to Windows