PLT-7978 Add websocket event for user role update (#7745)

* Add websocket event for user role update

* Fix tests

* More test fixes

api4/user.go

@@ -651,7 +651,7 @@ func updateUserRoles(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	if _, err := c.App.UpdateUserRoles(c.Params.UserId, newRoles); err != nil {
+	if _, err := c.App.UpdateUserRoles(c.Params.UserId, newRoles, true); err != nil {
 		c.Err = err
 		return
 	} else {