[DEV] Import SMD's redfish package which was previously named rf

[shunr-hpe]

Description
Change to import the next release of smd and change the package name rf to redfish

Details
Change

"github.com/OpenCHAMI/smd/v2/pkg/rf"

to

rf "github.com/OpenCHAMI/smd/v2/pkg/redfish"

Also, update go.mod to a version of smd that includes this change.

This smd PR changed the package name:
OpenCHAMI/smd#58
The new package name can be imported once smd is tagged.