Check whether we should remove akonadi
Checking the packages in 6.0~rc1, anonym found akonadi, which we probably don't want?
libkf5akonadi-data 4:22.12.3-1
libkf5akonadicore5abi2:amd64 4:22.12.3-1
libkf5akonadimime5:amd64 4:22.12.3-1
libkf5akonadiprivate5abi2:amd64 4:22.12.3-1
libkf5akonadiwidgets5abi1:amd64 4:22.12.3-1
libkf5mailtransportakonadi5:amd64 22.12.3-1