SECRETS: Search by the right type when checking containers
We've been searching for the wrong type ("simple") in
local_db_check_containers(), which always gives us a NULL result.
Let's introduce the new LOCAL_CONTAINER_FILTER and do the search for the
right type ("container") from now on.
Signed-off-by: Fabiano Fidêncio <firstname.lastname@example.org>
Reviewed-by: Jakub Hrozek <email@example.com>