surface: linux 6.6.8 -> 6.6.10, remove linux 6.1, set default 6.6 for surface-go

[stigtsp]

Description of changes

• surface: linux 6.6.8 -> 6.6.10
• surface: set default kernel to major version 6.6
• surface: remove linux 6.1

This PR changes the default kernel for surface-go from 6.1 to the default 6.6, and removes linux 6.1 to reduce maintenance overhead.

It should also be tested on surface-go devices before being merged.

Things done

• Tested on Surface Laptop 4 AMD

• Tested on Surface Go

• Tested the changes in your own NixOS Configuration

• Tested the changes end-to-end by using your fork of nixos-hardware and
  importing it via <nixos-hardware> or Flake input

[stigtsp]

@roukydesbois can you test this PR on your Surface Go device using nixos-hardware.nixosModules.microsoft-surface-go?

[Cryolitia]

test on Surface Go

[Mic92]

@mergify queue

[mergify]

queue

✅ The pull request has been merged automatically

The pull request has been merged automatically at c478b3d

[roukydesbois]

@roukydesbois can you test this PR on your Surface Go device using nixos-hardware.nixosModules.microsoft-surface-go?

I can confirm it works! Thanks a lot for the help and the work!