fix servicebus namespace slug

the servicebus namespace slug coming from naming module when using module.naming.servicebus_namespace.name is not allowing by the Azure when creating an resource, with an error stating, "name" cannot end with a hyphen, -sb, or -mgmt
│ 
│   with module.service_bus.azurerm_servicebus_namespace.this,
│   on .terraform/modules/service_bus/main.tf line 3, in resource "azurerm_servicebus_namespace" "this":
│    3:   name                          = var.name

resourceDefinition.json

@@ -1767,7 +1767,7 @@
     },
     "regex": "^(?=.{6,50}$)[a-zA-Z][a-zA-Z0-9-]+[a-zA-Z0-9]$",
     "scope": "global",
-    "slug": "sb",
+    "slug": "sbus",
     "dashes": true
   },
   {