sync validate.yml with master

[geekosaur]

Too many backports in the wrong order = mayhem

Template B: This PR does not modify behaviour or interface

E.g. the PR only touches documentation or tests, does refactorings, etc.

Include the following checklist in your PR:

• Patches conform to the coding conventions.
• Is this a PR that fixes CI? If so, it will need to be backported to older cabal release branches (ask maintainers for directions).

[geekosaur]

I think I need to patch this up a bit

[geekosaur]

So apparently cabal-tests does not like AArch64 Macs. There are two PRs that change it significantly that aren't backported, which presumably fix whatever is wrong. Rather than try to figure it out, I'm just going to leave 3.12 and 3.14 on Intel.