Adding arm-id details to NetworkIsolationSettings to resolve Powershell SDK issue (#25480)

Author: jeremyfrosti

specification/sql/resource-manager/Microsoft.Sql/preview/2023-02-01-preview/Servers.json

@@ -711,6 +711,11 @@
           "description": "The resource id for the SQL server which is the target of this request. If set, private endpoint connection will be created for the SQL server. Must match server which is target of the operation.",
           "type": "string",
           "format": "arm-id",
+          "x-ms-arm-id-details": {
+            "allowedResources": [
+              {}
+            ]
+          },
           "x-ms-mutability": [
             "create"
           ]