MM-58771 - Make manage_server permission, non updatable (#27481)

* make manage_server, non updatable

* remove blank line

server/channels/api4/role.go

@@ -18,6 +18,7 @@ var notAllowedPermissions = []string{
 	model.PermissionSysconsoleWriteUserManagementSystemRoles.Id,
 	model.PermissionSysconsoleReadUserManagementSystemRoles.Id,
 	model.PermissionManageRoles.Id,
+	model.PermissionManageSystem.Id,
 }
 
 func (api *API) InitRole() {