chore: allow ogmios v7 in instance and service version validation (#89)

The bootstrap module restricted ogmios_version to {5,6}, rejecting v7
instances added after the docker/ogmios-7 image (#88). Extend both the
instance and service version validations to accept "7".

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: scarmuega

bootstrap/instance/main.tf

@@ -6,8 +6,8 @@ variable "ogmios_version" {
   type = string
 
   validation {
-    condition     = contains(["5", "6"], var.ogmios_version)
-    error_message = "Invalid version. Allowed values are 5 or 6."
+    condition     = contains(["5", "6", "7"], var.ogmios_version)
+    error_message = "Invalid version. Allowed values are 5, 6 or 7."
   }
 }
 

bootstrap/service/main.tf

@@ -10,7 +10,7 @@ variable "ogmios_version" {
   type = string
 
   validation {
-    condition     = contains(["5", "6"], var.ogmios_version)
-    error_message = "Invalid version. Allowed values are 5 or 6."
+    condition     = contains(["5", "6", "7"], var.ogmios_version)
+    error_message = "Invalid version. Allowed values are 5, 6 or 7."
   }
 }