fix: coreutils download path for darwin_amd64

[mrmeku]

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Changes are visible to end-users: no

Test plan

• Manual testing; please provide instructions so we can reproduce:
  Ran bazel run //:format locally to completion

[aspect-workflows]

Test

All tests were cache hits

215 tests (100.0%) were fully cached saving 46s.

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Test

e2e/copy_action

All tests were cache hits

1 test (100.0%) was fully cached saving 73ms.

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Test

e2e/copy_to_directory

All tests were cache hits

6 tests (100.0%) were fully cached saving 583ms.

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Test

e2e/coreutils

All tests were cache hits

4 tests (100.0%) were fully cached saving 455ms.

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Test

e2e/external_copy_to_directory

All tests were cache hits

1 test (100.0%) was fully cached saving 73ms.

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Test

e2e/smoke

All tests were cache hits

6 tests (100.0%) were fully cached saving 2s.

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Buildifier      Format      Gazelle

[gregmagolan]

See my last comment

[gregmagolan]

🦐