Bump cost-model version

pkg/env/costmodelenv.go

@@ -128,7 +128,7 @@ func GetPricingConfigmapName() string {
 // GetAWSAccessKeyID returns the environment variable value for AWSAccessKeyIDEnvVar which represents
 // the AWS access key for authentication
 func GetAppVersion() string {
-	return Get(AppVersionEnvVar, "1.88.1")
+	return Get(AppVersionEnvVar, "1.89.0-rc.0")
 }
 
 // IsEmitNamespaceAnnotationsMetric returns true if cost-model is configured to emit the kube_namespace_annotations metric