add phpunit 10

[Robertbaelde]

Adds phpunit 10 (https://phpunit.de/announcements/phpunit-10.html)

[frankdejonge]

I think the verbose flag can be removed and then it should probably be good 👍

[rojtjo]

Hi @frankdejonge, could tag a new version with these changes?

Currently using an inline alias (dev-main as 3.x-dev) as a workaround, so no rush! 🙂

[frankdejonge]

@rojtjo it's tagged 👍

[rojtjo]

Awesome, thank you!