Pass Repository ID To Upgrade Prechecks

When querying for upgrade pre-checks, the target stack version and name are required now. It's simple to just supply the repository ID in this case as it contains all relevant information and prevents a NamedQuery lookup.

The new query should look like:

GET api/v1/clusters/c1/rolling_upgrades_checkfields=*&
UpgradeChecks/repository_version_id=2&
UpgradeChecks/upgrade_type=ROLLING