Enable cardano-node-macos hydraJob expression for aarch64-darwin

[ch1bo]

Enable the flake output building a "binary release" of cardano-node and other binaries also on aarch64-darwin builds.

We use this downstream to build cardano-node and cardano-cli distributable executables for our users. See also cardano-scaling/hydra#1233

Checklist

• Commit sequence broadly makes sense and commits have useful messages
• New tests are added if needed and existing tests are updated. -> Not needed
• Any changes are noted in the CHANGELOG.md for affected package. -> Not needed
• The version bounds in .cabal files are updated -> Not needed
• CI passes. See note on CI. The following CI checks are required:
  • Code is linted with hlint. See .github/workflows/check-hlint.yml to get the hlint version
  • Code is formatted with stylish-haskell. See .github/workflows/stylish-haskell.yml to get the stylish-haskell version
  • Code builds on Linux, MacOS and Windows for ghc-8.10.7 and ghc-9.2.7
• Self-reviewed the diff

[github-actions]

This PR is stale because it has been open 45 days with no activity.

[carbolymer]

Can you rebase this PR. There are hydra failures, which may be fixed on master already.

[github-actions]

This PR is stale because it has been open 45 days with no activity.

[angerman]

Seems reasonable.