fix: add arch to cache key

[Zxilly]

Description:

GitHub has added the arm64 runner, so arch should be used as part of the cache key. Otherwise, if there are macos-13 macos-14 running at the same time, the late executor will get the wrong cache.

This problem is particularly acute for pipenv and poetry, for which action also caches the contents of venv. This prevents any libraries containing native binary dependencies from working properly.

For real-world error, see https://github.com/Zxilly/go-size-analyzer/actions/runs/9564444574/job/26365211564

Check list:

• Mark if documentation changes are required.
• Mark if tests were added or updated to cover the changes.

[Zxilly]

@actions/setup-actions-team Can anyone review this?