Update output so the ARN can't be accessed until the function creation is complete (all permissions applied)

Author: KyleKotowick

outputs.tf

@@ -1,4 +1,5 @@
 output "invicton_labs_lambda_shell_arn" {
   description = "The ARN of the Lambda function. The output is oddly named because it's used to ensure that the correct module is passed into the lambda-shell-resource and lambda-shell-data modules."
-  value = module.shell_lambda.lambda.arn
+  // Use the "complete" output of the inner Lambda module so that the function ARN can't be used until everything has been completed (permissions have been applied)
+  value = module.shell_lambda.complete ? module.shell_lambda.lambda.arn : module.shell_lambda.lambda.arn
 }