Update lambda runtime list (#702)

Author: abetomo

README.md

@@ -230,7 +230,7 @@ AWS Lambda will let you set environment variables for your function. Use the sam
 
 ## Node.js Runtime Configuration
 
-AWS Lambda now supports Node.js 18, Node.js 16 and Node.js 14. Please also check the [Lambda runtimes](https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html) page.
+AWS Lambda now supports Node.js 20, Node.js 18 and Node.js 16. Please also check the [Lambda runtimes](https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html) page.
 
 ## Use S3 to deploy
 

lib/.env.example

@@ -10,7 +10,7 @@ AWS_HANDLER=index.handler
 AWS_MEMORY_SIZE=128
 AWS_TIMEOUT=3
 AWS_DESCRIPTION=
-AWS_RUNTIME=nodejs18.x
+AWS_RUNTIME=nodejs20.x
 AWS_VPC_SUBNETS=
 AWS_VPC_SECURITY_GROUPS=
 AWS_TRACING_CONFIG=

lib/main.js

@@ -52,7 +52,7 @@ event_sources.json and ${program.eventFile} files as needed.`)
   }
 
   async run (program) {
-    if (!['nodejs14.x', 'nodejs16.x', 'nodejs18.x'].includes(program.runtime)) {
+    if (!['nodejs16.x', 'nodejs18.x', 'nodejs20.x'].includes(program.runtime)) {
       console.error(`Runtime [${program.runtime}] is not supported.`)
       process.exit(254)
     }

test/main.js

@@ -23,7 +23,7 @@ const originalProgram = {
   memorySize: 128,
   timeout: 3,
   description: '',
-  runtime: 'nodejs18.x',
+  runtime: 'nodejs20.x',
   deadLetterConfigTargetArn: '',
   tracingConfig: '',
   Layers: '',

test/node-lambda.js

@@ -157,7 +157,7 @@ describe('bin/node-lambda', () => {
         process.env.AWS_RUNTIME = 'test'
       })
       after(() => {
-        process.env.AWS_RUNTIME = 'nodejs18.x'
+        process.env.AWS_RUNTIME = 'nodejs20.x'
       })
 
       it('`node-lambda run` exitCode is `254` (callback(null))', (done) => {
@@ -171,14 +171,14 @@ describe('bin/node-lambda', () => {
       })
     })
 
-    describe('node-lambda run (Runtime nodejs18.x is supported)', () => {
+    describe('node-lambda run (Runtime nodejs20.x is supported)', () => {
       const eventObj = {
         asyncTest: false,
         callbackWaitsForEmptyEventLoop: true // True is the default value of Lambda
       }
 
       before(() => {
-        process.env.AWS_RUNTIME = 'nodejs18.x'
+        process.env.AWS_RUNTIME = 'nodejs20.x'
       })
 
       it('`node-lambda run` exitCode is not `254` (callback(null))', (done) => {