Update orientation.md with Ember v4.7.0

[tniezurawski]

I'm not sure how much effort it would be to automate updating this version in guides to the latest version but here's a manual update.

I'm also updating the node version to the LTS so it won't look "so old".

[MinThaMie]

Thanks for the heads-up. This part is automatically generated as you can see in #1832. The old node version is the one we're using in https://github.com/ember-learn/super-rentals-tutorial. I'll try to merge #1832 this week when I've removed all the images from the PR

[tniezurawski]

This part is automatically generated as you can see in #1832

Ah, that makes sense @MinThaMie. I somehow wanted to believe this is automated or semi-automated 😅

The old node version is the one we're using in https://github.com/ember-learn/super-rentals-tutorial

Oki, it makes sense then to keep the node version the same as in the tutorial app. Maybe I'll contribute there then.

Closing the PR ✌️ Thanks for the clarification!