Use Base16 hash for script path. (backport #9459)

[mergify]

This is an automatic backport of pull request #9459 done by Mergify.
Cherry-pick of 97f9917 has failed:

On branch mergify/bp/3.10/pr-9459
Your branch is up to date with 'origin/3.10'.

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Changes to be committed:
	modified:   cabal-install/cabal-install.cabal
	modified:   cabal-testsuite/src/Test/Cabal/Prelude.hs
	new file:   changelog.d/base16-script-cache

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   cabal-install/src/Distribution/Client/HashValue.hs
	both modified:   cabal-install/src/Distribution/Client/ScriptUtils.hs
	both modified:   cabal-testsuite/cabal-testsuite.cabal

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[Mikolaj]

Something is quite borked in these CI failures. Let me try to restart.

[Mikolaj]

No luck. The error from the boostrap tests is

src/Distribution/Client/HashValue.hs:9:5: error:
    Not in scope: ‘showHashValueBase64’

and the one from Validate tests is hard to fathom, but perhaps it's the same thing?

[jasagredo]

Rebase conflicts are resolved now

[jasagredo]

@mergify refresh

[mergify]

refresh

✅ Pull request refreshed

[ulysses4ever]

@mergify rebase

[mergify]

rebase

✅ Branch has been successfully rebased

[Mikolaj]

There is a change in a test that sneaked in here from another PR, but it seems benign. Please feel free to set the merge label.

[jasagredo]

I'm unsure which change you mean. All I can see in the diff belongs to this change to Base16, also the changes in cabal-testsuite/src/Test/Cabal/Prelude.hs.

[Mikolaj]

You are right, I take it back. The addition of default-language: Haskell2010 in the original PR is omitted in the backport because the component in question (test-runtime-deps) is absent on branch 3.10. Anyway, the change is minor, even if it was applicable.

Edit: So, actually, it "sneaked" into the original PR, not into the backport. :)