Fix rootly integration 404 (#15315)

Closes #15092

Author: a-hariti

redirects.js

@@ -218,6 +218,10 @@ const developerDocsRedirects = [
 
 /** @type {import('next/dist/lib/load-custom-routes').Redirect[]} */
 const userDocsRedirects = [
+  {
+    source: '/organization/integrations/rootly/',
+    destination: '/organization/integrations/notification-incidents/rootly/',
+  },
   {
     source: '/account/cli/configuration/',
     destination: '/cli/configuration/',