message: updating lambda runtime version
diff: @@ -14,7 +14,7 @@ export class TheSimpleWebserviceStack extends cdk.Stack {
  // defines an AWS Lambda resource
  const hello = new lambda.Function(this, 'HelloHandler', {
  - runtime: lambda.Runtime.NODEJS_8_10, // execution environment
  + runtime: lambda.Runtime.NODEJS_12_X, // execution environment
  code: lambda.Code.asset('lambda'), // code loaded from the "lambda" directory
  handler: 'lambda.handler', // file is "lambda", function is "handler"
  environment: {
  