Unable to add new instance on MySQL InnoDB cluster
I found solution the issue:

1.It's neccessary to configure and validate every instance with dba.checkInstanceConfiguration() and dba.configureInstance().
2.Specify port number of instance which we'll add to the cluster.
Example in my script:
cluster.addInstance({user: "admin", host: "srv-mysql-02", port:3306, password: dbPass})