chore: update cos plan condition (#818)

Co-authored-by: Md Anam Raihan <[email protected]>

examples/default/variables.tf

@@ -43,7 +43,7 @@ variable "cos_plan" {
   type        = string
   default     = "standard"
   validation {
-    condition     = contains(["standard", "lite"], var.cos_plan)
+    condition     = contains(["standard"], var.cos_plan)
     error_message = "The specified cos_plan is not a valid selection!"
   }
 }