* Make check_port asyncio
This requires to change the ingress_port property to a async method.
* Avoid using wait_for
* Add missing async
* Really await
* Set dynamic ingress port on add-on installation/update
* Fix pytest issue
* Rename async_check_port back to check_port
* Raise RuntimeError in case port is not set
* Make sure port gets set on add-on restore
* Drop unnecessary async
* Simplify check_port by using asyncio.get_running_loop()
