Infra support to spin up new testgrid UI

[SohamChakraborty]

Creating this as a separate issue for the required infra work, from the existing issue in testgrid repository.

The infra work needed is identified in this comment from @ameukam :

• Get a new GCP project
• Define ownership of the workload
• Set a new GKE cluster
• Deploy the OCI image
• Expose it to Internet (meaning a HTTPRoute+ a TLS Certificate + a DNS entry)

[ameukam]

/kind feature
/milestone v1.35
/area infra