Quoted type constraints are deprecated (#6497)

contrib/terraform/openstack/variables.tf

@@ -131,7 +131,7 @@ variable "network_name" {
 
 variable "network_dns_domain" {
   description = "dns_domain for the internal network"
-  type        = "string"
+  type        = string
   default     = null
 }
 
@@ -142,13 +142,13 @@ variable "use_neutron" {
 
 variable "subnet_cidr" {
   description = "Subnet CIDR block."
-  type        = "string"
+  type        = string
   default     = "10.0.0.0/24"
 }
 
 variable "dns_nameservers" {
   description = "An array of DNS name server names used by hosts in this subnet."
-  type        = "list"
+  type        = list
   default     = []
 }
 
@@ -178,30 +178,30 @@ variable "supplementary_node_groups" {
 
 variable "bastion_allowed_remote_ips" {
   description = "An array of CIDRs allowed to SSH to hosts"
-  type        = "list"
+  type        = list(string)
   default     = ["0.0.0.0/0"]
 }
 
 variable "master_allowed_remote_ips" {
   description = "An array of CIDRs allowed to access API of masters"
-  type        = "list"
+  type        = list(string)
   default     = ["0.0.0.0/0"]
 }
 
 variable "k8s_allowed_remote_ips" {
   description = "An array of CIDRs allowed to SSH to hosts"
-  type        = "list"
+  type        = list(string)
   default     = []
 }
 
 variable "k8s_allowed_egress_ips" {
   description = "An array of CIDRs allowed for egress traffic"
-  type        = "list"
+  type        = list(string)
   default     = ["0.0.0.0/0"]
 }
 
 variable "worker_allowed_ports" {
-  type = "list"
+  type = list
 
   default = [
     {