Updates the access control list for a BRK
isPublic: true), it will be visible to all users, but only users with explicit permissions can edit or delete it.isPublic: false), it will only be visible to users specified in the emails array.isClone parameter controls whether other users can clone the BRK. Cloning creates a copy of the BRK that the user owns and can modify.emails array must include at least one user with owner permissions (permission level 2).