Do not check PVP on internal targets (backport #9004)

[mergify]

This is an automatic backport of pull request #9004 done by Mergify.
Cherry-pick of 1cb92a3 has failed:

On branch mergify/bp/3.10/pr-9004
Your branch is up to date with 'origin/3.10'.

You are currently cherry-picking commit 1cb92a38c.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	new file:   cabal-testsuite/PackageTests/Check/NonConfCheck/PackageVersionsNoCheck/cabal.out
	new file:   cabal-testsuite/PackageTests/Check/NonConfCheck/PackageVersionsNoCheck/cabal.test.hs
	new file:   cabal-testsuite/PackageTests/Check/NonConfCheck/PackageVersionsNoCheck/pkg.cabal
	new file:   changelog.d/pr-9004

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   Cabal/src/Distribution/PackageDescription/Check.hs

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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[Kleidukos]

Superceded by #9013