Deprecation warning: EM->connect public usage

[DarthLegiON]

When using Codeception doctrine2 methods, I'm getting this deprecation warning:

Public access to Connection::connect() is deprecated. (Connection.php:364 called by Doctrine2.php:260, doctrine/dbal#4966, package doctrine/dbal) /var/app/vendor/doctrine/deprecations/lib/Doctrine/Deprecations/Deprecation.php:209

Looks like calling this method directly from retrieveEntityManager will be impossible in DBAL 4.0, the method will become protected.

[W0rma]

Will be fixed by Codeception/module-doctrine2#73

[TavoNiievez]

Fixed by: #26