replace delay.js with timers/promises

src/docker.js

@@ -37,7 +37,6 @@ const apps = require('./apps.js'),
     BoxError = require('./boxerror.js'),
     constants = require('./constants.js'),
     debug = require('debug')('box:docker'),
-    delay = require('./delay.js'),
     Docker = require('dockerode'),
     paths = require('./paths.js'),
     promiseRetry = require('./promise-retry.js'),
@@ -46,6 +45,7 @@ const apps = require('./apps.js'),
     shell = require('./shell.js'),
     safe = require('safetydance'),
     system = require('./system.js'),
+    timers = require('timers/promises'),
     volumes = require('./volumes.js'),
     _ = require('underscore');
 
@@ -648,7 +648,7 @@ async function update(name, memory, memorySwap) {
     for (let times = 0; times < 10; times++) {
         const [error] = await safe(shell.promises.spawn(`update(${name})`, '/usr/bin/docker', args, { }));
         if (!error) return;
-        await delay(60 * 1000);
+        await timers.setTimeout(60 * 1000);
     }
 
     throw new BoxError(BoxError.DOCKER_ERROR, 'Unable to update container');