[release-2.31] Fix terraform validate for the exoscale provider (#13651)

* Pin the exoscale terraform provider below 0.75

Signed-off-by: Ali Afsharzadeh <afsharzadeh8@gmail.com>

* Use lowercase state for exoscale compute instances

Signed-off-by: Ali Afsharzadeh <afsharzadeh8@gmail.com>

---------

Signed-off-by: Ali Afsharzadeh <afsharzadeh8@gmail.com>
Co-authored-by: Ali Afsharzadeh <afsharzadeh8@gmail.com>

contrib/terraform/exoscale/modules/kubernetes-cluster/main.tf

@@ -41,7 +41,7 @@ resource "exoscale_compute_instance" "master" {
   template_id        = data.exoscale_template.os_image[each.key].id
   type               = each.value.size
   disk_size          = each.value.boot_disk.root_partition_size + each.value.boot_disk.node_local_partition_size + each.value.boot_disk.ceph_partition_size
-  state              = "Running"
+  state              = "running"
   zone               = var.zone
   security_group_ids = [exoscale_security_group.master_sg.id]
   network_interface {
@@ -73,7 +73,7 @@ resource "exoscale_compute_instance" "worker" {
   template_id        = data.exoscale_template.os_image[each.key].id
   type               = each.value.size
   disk_size          = each.value.boot_disk.root_partition_size + each.value.boot_disk.node_local_partition_size + each.value.boot_disk.ceph_partition_size
-  state              = "Running"
+  state              = "running"
   zone               = var.zone
   security_group_ids = [exoscale_security_group.worker_sg.id]
   network_interface {

contrib/terraform/exoscale/modules/kubernetes-cluster/versions.tf

@@ -2,7 +2,7 @@ terraform {
   required_providers {
     exoscale = {
       source  = "exoscale/exoscale"
-      version = ">= 0.21"
+      version = ">= 0.21, < 0.75"
     }
   }
   required_version = ">= 0.13"

contrib/terraform/exoscale/versions.tf

@@ -2,7 +2,7 @@ terraform {
   required_providers {
     exoscale = {
       source  = "exoscale/exoscale"
-      version = ">= 0.21"
+      version = ">= 0.21, < 0.75"
     }
     null = {
       source = "hashicorp/null"