Symfony version(s) affected

5.3.11

Description

After upgrading the process component from 5.3.7 to 5.3.11 I sometimes get the following error:
Notice: Array to string conversion on https://github.com/symfony/symfony/blob/5.4/src/Symfony/Component/Process/Process.php#L344

A simple dump($k, $v) showed "argv" and [].

How to reproduce

not sure (yet) but version 5.3.11 required.

Possible Solution

No response

Additional Context

No response