This means we can all run the same version. And when switching to
stableX it can pull the corresponding version too. Also local dev envs
and CI run the same phpunit.
Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>
The issue was that we were using psalm/phar instead of vimeo/psalm. This
caused issue with the custom psalm plugin in buildd/psalm.
This is using the opportunity to also update the psalm version from 3.8
to 3.17 and the php-cs-fixer too.
Signed-off-by: Carl Schwan <carl@carlschwan.eu>