Backport #10448: try to run check-sdist on the right ghcs

[mergify]

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).

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This is an automatic backport of pull request #10448 done by [Mergify](https://mergify.com).

[geekosaur]

Not needed for the release, but we will want it and its successor PR (backport of #10478) to verify that HEAD leading up to later 3.14 branch releases are backward compatible.