Changed runtime for node 12

deploy/lambda.tf

@@ -23,7 +23,7 @@ resource "aws_lambda_function" "test_lambda" {
   # For Terraform 0.11.11 and earlier, use the base64sha256() function and the file() function:
   # source_code_hash = "${base64sha256(file("lambda_function_payload.zip"))}"
   source_code_hash               = filebase64sha256(data.archive_file.lambda_file.output_path)
-  runtime                        = "nodejs14.x"
+  runtime                        = "nodejs12.x"
   reserved_concurrent_executions = 2
   layers = [
     "arn:aws:lambda:eu-west-1:580247275435:layer:LambdaInsightsExtension:14"