Refactor upgrade ember 4 (#1501)

Upgrade Ember 4

Co-authored-by: Randall Morey <randall@randallmorey.com>
Co-authored-by: Zhihe Li <zhihe.li@hashicorp.com>

addons/api/tests/dummy/app/index.html

@@ -2,7 +2,6 @@
 <html>
   <head>
     <meta charset="utf-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <title>Dummy</title>
     <meta name="description" content="">
     <meta name="viewport" content="width=device-width, initial-scale=1">

addons/api/tests/dummy/config/ember-cli-update.json

@@ -3,7 +3,7 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.24.0",
+      "version": "4.4.1",
       "blueprints": [
         {
           "name": "addon",

addons/api/tests/dummy/config/environment.js

@@ -5,7 +5,7 @@ module.exports = function (environment) {
     modulePrefix: 'dummy',
     environment,
     rootURL: '/',
-    locationType: 'auto',
+    locationType: 'history',
     EmberENV: {
       FEATURES: {
         // Here you can enable experimental features on an ember canary build

addons/api/tests/dummy/mirage/config.js

@@ -1,22 +1,5 @@
-export default function () {
-  // These comments are here to help you get started. Feel free to delete them.
-  /*
-    Config (with defaults).
+import { createServer } from 'miragejs';
 
-    Note: these only affect routes defined *after* them!
-  */
-  // this.urlPrefix = '';    // make this `http://localhost:8080`, for example, if your API is on a different server
-  // this.namespace = '';    // make this `/api`, for example, if your API is namespaced
-  // this.timing = 400;      // delay for each request, automatically set to 0 during testing
-  /*
-    Shorthand cheatsheet:
-
-    this.get('/posts');
-    this.post('/posts');
-    this.get('/posts/:id');
-    this.put('/posts/:id'); // or this.patch
-    this.del('/posts/:id');
-
-    https://www.ember-cli-mirage.com/docs/route-handlers/shorthands
-  */
+export default function (config) {
+  return createServer({ ...config });
 }

addons/api/tests/dummy/mirage/serializers/application.js

@@ -1,3 +1,3 @@
-import { JSONAPISerializer } from 'ember-cli-mirage';
+import { JSONAPISerializer } from 'miragejs';
 
 export default JSONAPISerializer.extend({});