Change cabal-plan list-bin to cabal list-bin in Makefile

[fgaz]

cabal list-bin was introduced in cabal-install 3.4, so it's safe to
assume every cabal developer has it by now. By using that, we
remove the dependency on cabal-plan from the Makefile (though it's still
present in other places).

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Please include the following checklist in your PR:

• Patches conform to the coding conventions.
• Any changes that could be relevant to users have been recorded in the changelog.
• The documentation has been updated, if necessary.

Please also shortly describe how you tested your change. Bonus points for added tests!

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I'm not sure if CI will be fine with this though. some jobs are run with older images. on the other hand, CI doesn't use many make commands. let's see...

[jneira]

LGTM

[Mikolaj]

It worked!

[andreasabel]

@fgaz
Broke for me (macOS):

$ make cabal-install-test-accept 
rm -rf .ghc.environment.*
cd cabal-testsuite && `cabal list-bin cabal-tests` --with-cabal=`cabal list-bin cabal` --hide-successes -j3 --accept 
Error: cabal: No or multiple targets given

/bin/sh: --with-cabal=/Users/abel/bin/src/cabal/dist-newstyle/build/x86_64-osx/ghc-8.10.7/cabal-install-3.7.0.0/x/cabal/build/cabal/cabal: No such file or directory
make: *** [Makefile:137: cabal-install-test-accept] Error 127

$ cabal list-bin cabal-tests
Error: cabal: The list-bin command is for finding a single binary at once. The
target 'Cabal-tests' refers to the package Cabal-tests-3 which includes the
test suite 'unit-tests', the test suite 'rpmvercmp', the test suite
'parser-tests', the test suite 'no-thunks-test', the test suite
'hackage-tests', the test suite 'custom-setup-tests' and the test suite
'check-tests'.

$ cabal-plan list-bin cabal-tests
/Users/abel/bin/src/cabal/dist-newstyle/build/x86_64-osx/ghc-8.10.7/cabal-testsuite-3/build/cabal-tests/cabal-tests

Could be a problem with case-insensitivity.

@fgaz After our conversation where you mentioned that cabal-plan list-bin was obsolete, I noticed already on my machine that it worked more reliable than cabal list-bin (which in this instance wanted to build all kinds of stuff rather than simply spitting out the name of the binary).

Suggestion: revert this PR (at #7675). (I have to do it anyway on my machine.)

[phadej]

case insensitive file system strikes again. So dumb.

[fgaz]

Even then, there's also a problem in... sensible file systems, and when a qualified target is used:

> cabal list-bin cabal-testsuite:exe:cabal-tests
cabal: No or multiple targets given

This definitely looks like a bug in list-bin, and a bad error message: is it zero, or multiple?

This is not fixed by #7408 by the way.

So yes, let's revert for now. I also opened #7679 to track the bug.

P.S.: yes, I originally only checked a couple of invocations and assumed it worked the same for all others, sorry..