* chore: update go-dbw dependencies
This update included an update of the upstream gorm dependency.
In the latest update, gorm appears to have become more sensitive when
a slice is passed into operations. The ptr to slice must now
be a ptr to slice of ptrs. This change required an update to how
boundary handles slices of PrincipalRole, which now must return a ptr
to PrincipalRole. There were also some tests that needed to be
updated because of this change.
* fixup! chore: update go-dbw dependencies