Fix link to Closed Beta in the Group Managed Accounts documentation page

doc/user/group/saml_sso/group_managed_accounts.md

@@ -8,7 +8,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 # Group Managed Accounts **(PREMIUM)**
 
 CAUTION: **Caution:**
-This [Closed Beta](https://about.gitlab.com/handbook/product/#closed-beta) feature is being re-evaluated in favor of a different
+This [Closed Beta](https://about.gitlab.com/handbook/product/gitlab-the-product/#sts=Closed%20Beta) feature is being re-evaluated in favor of a different
 [identity model](https://gitlab.com/gitlab-org/gitlab/-/issues/218631) that does not require separate accounts.
 We recommend that group administrators who haven't yet implemented this feature wait for
 the new solution.