I was lucky to get the all air out quickly enough through this steps. It might help someone in the future:
1 - Top up the power steering oil and turn the steering wheel left/right 15 ish times with engine OFF (wheels of the ground)
2 - Turn ON the engine and slowly do the same.
3 - Turn OFF the engine and let the air escape with reservoir cap off (1h) you can do your tie rod ends in the meantime or drink a tea.
4 - Whith the engine OFF slowly turn the steering wheel L/R a couple of times you will see significant amount of air escaping through the reservoir.
5 - Top up the fluid and off you go.
This worked for me, no cavitation or funny noise from the PS pump.