Update release artifacts to follow naming distant-<HOST TRIPLE>

[Chip Senkbeil]

Currently, there are a lot of non-standard names in the artifacts:

• distant-win64
• distant-macos
• distant-linux64-...

Instead, we need to provide the exact Rust triples (or quadruples) used for the targets. The reason is this makes the scripts at https://sh.distant.dev/ be able to pull binaries without needing to maintain a mapping of what is available. As we add new binaries, those scripts will continue to work.

[Chip Senkbeil]

Implemented into releases workflow.

[github-actions]

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