use node: prefix for requires

mostly because code is being autogenerated by all the AI stuff using
this prefix. it's also used in the stack trace.

src/test/storage-provider-test.js

@@ -10,14 +10,14 @@ const backupTargets = require('../backuptargets.js'),
     BoxError = require('../boxerror.js'),
     common = require('./common.js'),
     consumers = require('node:stream/consumers'),
-    execSync = require('child_process').execSync,
+    execSync = require('node:child_process').execSync,
     expect = require('expect.js'),
     filesystem = require('../storage/filesystem.js'),
-    fs = require('fs'),
+    fs = require('node:fs'),
     gcs = require('../storage/gcs.js'),
     noop = require('../storage/noop.js'),
-    os = require('os'),
-    path = require('path'),
+    os = require('node:os'),
+    path = require('node:path'),
     s3 = require('../storage/s3.js'),
     safe = require('safetydance'),
     stream = require('stream/promises');