Add needed outputs to lambda module

modules/lambda/outputs.tf

@@ -1,3 +1,11 @@
 output "arn" {
   value = aws_lambda_function.lambda.arn
 }
+
+output "invoke_arn" {
+  value = aws_lambda_function.lambda.invoke_arn
+}
+
+output "function_name" {
+  value = aws_lambda_function.lambda.function_name
+}