Upgrade samples and CLI generate template to use nodejs 20 LTS (#54)

Co-authored-by: Antoine Cote <[email protected]>

Author: acote88

samples/nodejs/AWS S3/Dockerfile

@@ -1,5 +1,5 @@
 # Use an official Node runtime based on Alpine as a parent image
-FROM node:18-alpine
+FROM node:20-alpine
 
 # Set the working directory to /app
 WORKDIR /app

samples/nodejs/Basic Service/Dockerfile

@@ -1,5 +1,5 @@
 # Use an official Node runtime based on Alpine as a parent image
-FROM node:18-alpine
+FROM node:20-alpine
 
 # Set the working directory to /app
 WORKDIR /app

samples/nodejs/ChatGPT API/Dockerfile

@@ -1,5 +1,5 @@
 # Use an official Node runtime based on Alpine as a parent image
-FROM node:18-alpine
+FROM node:20-alpine
 
 # Set the working directory to /app
 WORKDIR /app

samples/nodejs/Fetch and Return JSON/Dockerfile

@@ -1,5 +1,5 @@
 # Use an official Node runtime based on Alpine as a parent image
-FROM node:18-alpine
+FROM node:20-alpine
 
 # Set the working directory to /app
 WORKDIR /app

samples/nodejs/Web Page and Form Post/Dockerfile

@@ -1,5 +1,5 @@
 # Use an official Node runtime based on Alpine as a parent image
-FROM node:18-alpine
+FROM node:20-alpine
 
 # Set the working directory to /app
 WORKDIR /app