Update Linux hardware to match M1 Max config

Why is this change being made?

1. The linked configuration for Linux laptops is "out of stock" and likely will never be back in stock, as it's obsolete technology.
2. The new linked configuration matches the Mac hardware specification.
3. The update from 512GB to 1TB SSD matches the minimum configuration for an M1 Max Macbook Pro.

Sidenote

The Macbook Pro hardware specifications list either 14" or 16" Macbook Pro with either 512GB or 1TB SSD, configured with M1 Max, but only the 16" model has an option for an M1 Max.
In that configuration (16" M1 Max), there is no option for 512GB SSD. The base model has 1TB of storage. What is more preferable: more screen sizes, or getting the M1 Max? Should the 14" / 512GB / M1 Pro configurations simply be removed?

Caveat here: new models are rumored to be due out later this year. Perhaps not worth changing anything until those are announced.

Author Checklist

• Provided a concise title for this Merge Request (MR)
• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
  • Copy/paste the Slack conversation to document it for later, or upload screenshots. Verify that no confidential data is added.
• Assign reviewers for this MR to the correct Directly Responsible Individual/s (DRI)
  • If the DRI for the page/s being updated isn’t immediately clear, then assign it to one of the people listed in the Maintained by section on the page being edited
  • If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in #mr-buddies
• If the changes affect team members, or warrant an announcement in another way, please consider posting an update in #whats-happening-at-gitlab linking to this MR
  • If this is a change that directly impacts the majority of global team members, it should be a candidate for #company-fyi. Please work with internal communications and check the handbook for examples.

---