Auto merge of #4268 - Turbo87:fastboot-update, r=Turbo87

Update `ember-cli-fastboot` to v3.2.0-beta.5

This should hopefully fix most of the Ember.js 4 compatibility issues :)

Author: bors

package.json

@@ -76,7 +76,7 @@
     "ember-cli-code-coverage": "1.0.3",
     "ember-cli-dependency-checker": "3.2.0",
     "ember-cli-dependency-lint": "2.0.1",
-    "ember-cli-fastboot": "2.2.3",
+    "ember-cli-fastboot": "3.2.0-beta.5",
     "ember-cli-head": "2.0.0",
     "ember-cli-htmlbars": "6.0.1",
     "ember-cli-inject-live-reload": "2.1.0",