DEV: Fix failing directory-columns ember CLI tests (#13490)

DEV: Fix failing directory-columns ember CLI tests (#13490)

Since #13488 the ember cli CI tests are failing.

diff --git a/app/assets/javascripts/discourse/tests/helpers/create-pretender.js b/app/assets/javascripts/discourse/tests/helpers/create-pretender.js
index 78f3c8c..f6167df 100644
--- a/app/assets/javascripts/discourse/tests/helpers/create-pretender.js
+++ b/app/assets/javascripts/discourse/tests/helpers/create-pretender.js
@@ -1036,7 +1036,7 @@ export function applyDefaultHandlers(pretender) {
     });
   });
 
-  pretender.get("directory-columns.json", () => {
+  pretender.get("/directory-columns.json", () => {
     return response(200, {
       directory_columns: [
         {

GitHub sha: 30c7a9b06d939804da4b024e7c3db5c8aab89b7d

This commit appears in #13490 which was approved by pmusaraj. It was merged by martin.