fix exclusion validations issue
fix exclusion validations issue

`validates` against an array is broken in 6.1
Manually overriding until a fix is available

see https://github.com/rails/rails/issues/41051

Not the best fix in the world, but this works in rails 6.0 and rails 6.1

At this time, there are a few PRs out there as they decide how this validation is expected to work.
The linked issue links the the PRs and will hopefully tell us how to move forward

mzazrivec/manageiq,mzazrivec/manageiq,ManageIQ/manageiq,jrafanie/manageiq,kbrock/manageiq,ManageIQ/manageiq,jrafanie/manageiq,ManageIQ/manageiq,kbrock/manageiq,ManageIQ/manageiq,jrafanie/manageiq,kbrock/manageiq,mzazrivec/manageiq,mzazrivec/manageiq,kbrock/manageiq,jrafanie/manageiq