Replace Works on Arm machines affected by Equinix Metal sunset (June 2026)

[richardlau]

Refs: https://deploy.equinix.com/blog/sunsetting-equinix-metal/

As such, with this announcement, we’ll move towards an orderly sunsetting of Equinix Metal at the end of June 2026.

We're already in the (still ongoing) process of migrating all of our x64 hosts off Equinix Metal: https://github.com/nodejs/build/issues/3597

We'll need to find out if the sunset will also cover the ARM machines we have through the Works on ARM project.