Updated KubeRay version in MakeFile

Author: Bobbins228

Makefile

@@ -22,7 +22,7 @@ MCAD_REPO ?= github.com/project-codeflare/multi-cluster-app-dispatcher
 MCAD_CRD ?= ${MCAD_REPO}/config/crd?ref=${MCAD_VERSION}
 
 # KUBERAY_VERSION defines the default version of the KubeRay operator (used for testing)
-KUBERAY_VERSION ?= v0.6.0
+KUBERAY_VERSION ?= v1.0.0-rc.1
 
 # RAY_VERSION defines the default version of Ray (used for testing)
 RAY_VERSION ?= 2.5.0