Fix(test) : add option to composer to allow plugins

This fix github action test env.

Signed-off-by: Yann 'Ze' Richard <ze@nbox.org>

Fix(test): force xdebug.mode to coverage

avoid error "Code coverage needs to be enabled in php.ini by setting 'xdebug.mode' to 'coverage'"

Signed-off-by: Yann 'Ze' Richard <ze@nbox.org>

First public release