v5.2.0

Improving the integration with Symfony's security component, made possible by some features added with Symfony 5.2. This is removing some of the "hacks" the bundle does to make things work. Coincidentally, this also version 5.2 of the bundle :)

• With Symfony 5.2, the bundle is using a different way (less hacky) to manage access control during 2fa. Makes use of symfony/symfony#37336 and symfony/symfony#37337.
• The bundle's support for Symfony's experimental authenticator security system has been updated. The bundle now requires at least Symfony 5.2 to work in combination with the new authenticator security system. Integrated with symfony/symfony#37359 to manage the security token after login. Support and minimum required version for the old security system hasn't changed, don't worry.