FIX password and force dt_maj not null

migrations/Version20211230115034.php

migrations/Version20220128162555.php

src/Builder/UserBuilder.php

src/Controller/RegistrationController.php

src/DataFixtures/UserFixtures.php

src/Entity/User.php

src/Form/RegistrationFormType.php

src/Helper/StringHelper.php

templates/registration/register.html.twig

tests/functional/RegistrationControllerTest.php

translations/messages.fr.yaml