qt5-base: no my/postgresql
qt5-base: no my/postgresql

Qt's configure system can pick up system installs of Mysql and postgres,
resulting in link time errors. As we do not require these plugins for
SuperNEMO, explicitly disable them.

SuperNEMO-DBD/homebrew-cadfael,SuperNEMO-DBD/homebrew-cadfael,xgarrido/homebrew-cadfael,xgarrido/homebrew-cadfael