ix(BCN01-LAB): add required_providers to root module — not inherited from child modules

sites/BCN01-LAB/main.tf

@@ -1,6 +1,12 @@
 terraform {
   backend "s3" {}  # Config injected via -backend-config in CI (see backend.hcl at repo root)
-  # required_version and required_providers are declared once in modules/meraki-site/main.tf
+  required_version = ">= 1.5.0"
+  required_providers {
+    meraki = {
+      source  = "CiscoDevNet/meraki"
+      version = "1.9.0"
+    }
+  }
 }
 
 provider "meraki" {}