moving Tenant scheduler to correct location

[charris-ca]

Scheduler in the tenant resource was under metadata.scheduler. This fails when specifying any scheduler. Moving it to .scheduler according to the CRD schema.

Schema Reference:

      schema:
        openAPIV3Schema:
          properties:
            apiVersion:
              type: string
            kind:
              type: string
            metadata:
              type: object
            scheduler:
              properties:
                name:
                  type: string

[jiuker]

good catch