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/eventlog.js

@@ -115,8 +115,8 @@ exports = module.exports = {
     ACTION_PROCESS_CRASH: 'system.crash' // obsolete
 };
 
-const assert = require('assert'),
-    crypto = require('crypto'),
+const assert = require('node:assert'),
+    crypto = require('node:crypto'),
     database = require('./database.js'),
     debug = require('debug')('box:eventlog'),
     mysql = require('mysql2'),