fix: var.protocols validation

Author: Rene Barbosa

modules/resolver-endpoints/variables.tf

@@ -12,7 +12,9 @@ variable "name" {
 variable "protocols" {
   description = "The resolver endpoint protocols"
   validation {
-    condition     = contains(["DoH", "Do53", "DoH-FIPS"], var.protocols)
+    condition     = alltrue([
+      for value in var.protocols : contains(["DoH", "Do53", "DoH-FIPS"], var.protocols)
+    ])
     error_message = "Invalid value. Valid values are `DoH`, `Do53` and `DoH-FIPS`"
   }
   type = list(string)