Chore/update ember intl (#1773)

* Revert "chore: 🤖 Add patch-package to fix ember-intl for windows builds (#1742)"

This reverts commit cd557a86cc.

* chore: 🤖 Update ember-intl

patches/ember-intl+6.0.0-beta.4.patch

@@ -1,23 +0,0 @@
-diff --git a/node_modules/ember-intl/lib/broccoli/translation-reducer/utils/wrap-with-namespace-if-needed.js b/node_modules/ember-intl/lib/broccoli/translation-reducer/utils/wrap-with-namespace-if-needed.js
-index 3782ed5..37506d4 100644
---- a/node_modules/ember-intl/lib/broccoli/translation-reducer/utils/wrap-with-namespace-if-needed.js
-+++ b/node_modules/ember-intl/lib/broccoli/translation-reducer/utils/wrap-with-namespace-if-needed.js
-@@ -16,12 +16,16 @@ const enums = require('../../enums');
-  * @private
-  */
- function wrapWithNamespaceIfNeeded(object, filepath, inputPath, addonNames) {
--  let dirname = path.dirname(filepath).replace(inputPath, '');
-+  const normalizedFilePath = path.normalize(filepath);
-+  const normalizedInputPath = path.normalize(inputPath);
-+  const normalizedAddonNames = addonNames.map(path.normalize);
-+
-+  let dirname = path.dirname(normalizedFilePath).replace(normalizedInputPath, '');
- 
-   if (dirname) {
-     let prefix = path.sep;
- 
--    for (let addon of addonNames) {
-+    for (let addon of normalizedAddonNames) {
-       let addonPrefix = `${path.sep}${enums.addonNamespace}${path.sep}${addon}`;
- 
-       if (dirname.startsWith(addonPrefix)) {