fix: Hide events in the event type assignment tab for teams does not save (#18868)

* fix: flaky test organization.spec

* fix: Hide events in the event type assignment tab for teams does not save

---------

Co-authored-by: Udit Takkar <53316345+Udit-takkar@users.noreply.github.com>

packages/features/ee/managed-event-types/lib/handleChildrenEventTypes.ts

@@ -251,6 +251,7 @@ export default async function handleChildrenEventTypes({
           },
           data: {
             ...updatePayloadFiltered,
+            hidden: children?.find((ch) => ch.owner.id === userId)?.hidden ?? false,
             hashedLink:
               "multiplePrivateLinks" in unlockedFieldProps
                 ? undefined