Add prefer-node-protocol ESLint rule (#21532)

* Add `unicorn/prefer-node-protocol`

* Fix `unicorn/prefer-node-protocol` ESLint errors

* Run `npm run format:fix`

* Add sandboxed-module sourceTransformers in mocha setups

Fix `no such file or directory, open 'node:fs'` in `sandboxed-module`

* Remove `node:` in the SandboxedModule requires

* Fix new linting errors with `node:`

GitOrigin-RevId: 68f6e31e2191fcff4cb8058dd0a6914c14f59926

services/document-updater/scripts/remove_deleted_docs.js

@@ -7,7 +7,7 @@ const keys = Settings.redis.documentupdater.key_schema
 const ProjectFlusher = require('../app/js/ProjectFlusher')
 const RedisManager = require('../app/js/RedisManager')
 const { mongoClient, db, ObjectId } = require('../app/js/mongodb')
-const util = require('util')
+const util = require('node:util')
 const getDoc = util.promisify((projectId, docId, cb) =>
   RedisManager.getDoc(projectId, docId, (err, ...args) => cb(err, args))
 )