Build arm64 version for newer macs

[thebrave]

Still trying to avoid installing Rosetta, so I amended the workflow :

• to also build an Apple Silicon version of Brogue
• to use newer versions of the actions

Tests done: The arm64 version runs on my m1

[tmewett]

Thanks - I've edited this PR to target 'release', as per the contribution guide - could you rebase your branch onto 'release' and force-push? (There are conflicts since I already updated the Actions on 'release'.)

[tmewett]

I suppose in future we should make a universal binary - I opened a ticket: #739

[thebrave]

Hi, conflict fixed and rebased from correct branch.