tshemsedinov/Drop-Nodejs16: Drop Node.js 16 support

Drop Node.js 16 support in your projects

Now: October 2023, we have Node.js 18.18.0 LTS and 20.7.0 (current)
Going to drop Node.js 16 support before its end-of-file 2023-09-11 in Metarhia codebase, all projects, and course examples
Now we can rely on Node.js 18.18.0 capabilities
See release schedule: github.com/nodejs/release#release-schedule

Before this one see also previous checklist "Drop Node.js 14": github.com/tshemsedinov/Drop-Nodejs14
New node.js uses OpenSSL 3 instead of OpenSSL 1.1.1. This led to an early end of support for Node.js 16 LST: September 11th, 2023. See details: nodejs.org/en/blog/announcements/nodejs16-eol

Due to the move from npm v9 or later version, convert package_lock.json to lockfileVersion 3 by command: npm i --lockfile-version 3
Run your project with flag --pending-deprecation to see deprecation warnings and then with flag --throw-deprecation to exit with non-zero on deprecated API calls
Use native Fetch API instead of polyfill like undici or node-fetch. Now you can avoid axios and request() from node:http
You can use Web Streams API to be compatible with browser API in server-side rendering or so
Use Buffer method .subarray(start, end) instead of deprecated .slice(start, end): see Buffer docs
Stop using deprecated url.parse: see DEP0169 docs
Stop using deprecated Thenable in streams: see DEP0157 docs
Use http events: dropRequest and drop: see http docs
Use server.closeAllConnections() and server.closeIdleConnections(): see http docs
Use module.isBuiltin(moduleName): see module docs
Now we can use new V8 features:
Use promise-based node:readline API, example: const name = await rl.question('Name:'); and new methods: clearLine, commit and rollback, cursorTo, moveCursor, class Interface
Do not use node:async_hooks API like createHook and AsyncHook as non-stable, except stable classes AsyncLocalStorage and AsyncResource, see docs in a separate article "async context tracking"

Stable Web Crypto API (globalThis.crypto or require('node:crypto').webcrypto)
Improvements to the Intl API
Class Blob from node:buffer
Class BrodcastChannel from node:worker_threads
Global function structuredClone
Class v8.GCProfiler
Now child_process.fork supports file: protocol

Now we have native test runner module: node:test but it is not completely ready in all aspects. By the way node:test is a first module available just with node: prefix, it means: you can't access it by require('test')
Single executable applications
Both experimental module-based and process-based permission model
Experimental --watch flag to enable auto-restart on changes
Experimental Web Streams API
Experimental method subprocess[Symbol.dispose] added in node.js 20.5.0 to send SIGTERM to spawned child process
Experimental class File
Experimental classes TracingChannel, CustomEvent, CompressionStream, CustomEvent

Use native Fetch API instead of npm modules undici, request, axios, node-fetch
See previous recommendations for removing third-party dependencies in favour of node.js internal modules