Update dependency ember-load-initializers to v3

Author: renovate[bot]

package.json

@@ -47,7 +47,7 @@
     "ember-data": "5.3.8",
     "ember-disable-prototype-extensions": "1.1.3",
     "ember-cli-htmlbars": "6.3.0",
-    "ember-load-initializers": "2.1.2",
+    "ember-load-initializers": "3.0.1",
     "ember-page-title": "7.0.0",
     "ember-qunit": "8.1.0",
     "ember-resolver": "10.1.1",