Bump symfony/form to 4.4.12
Bump symfony/form to 4.4.12

https://github.com/symfony/symfony/pull/37725 was released in 4.4.12

sonata-project/SonataAdminBundle,osavchenko/SonataAdminBundle,Armstrong1992/SonataAdminBundle,osavchenko/SonataAdminBundle,Armstrong1992/SonataAdminBundle,peter-gribanov/SonataAdminBundle,sonata-project/SonataAdminBundle,peter-gribanov/SonataAdminBundle,peter-gribanov/SonataAdminBundle,peter-gribanov/SonataAdminBundle,osavchenko/SonataAdminBundle,osavchenko/SonataAdminBundle,osavchenko/SonataAdminBundle