Support arm64 arch

[jmontroy90]

Support ARM64 for architecture.

Fixes testing for the latest magefile version (v1.14.0) on ARM-based machines (most notably the new M1 / M2 Apple machines). Without this, tests were looking for a 32-bit Linux binary in tests, which is no longer produced by the upstream magefile repo, and wouldn't be right anyway.

Error output:

#13 6.453 Mage version found: v1.14.0
#13 6.454 Downloading https://github.com/magefile/mage/releases/download/v1.14.0/mage_1.14.0_Linux-32bit.tar.gz...
#13 6.454 ::debug::Downloading https://github.com/magefile/mage/releases/download/v1.14.0/mage_1.14.0_Linux-32bit.tar.gz
#13 6.454 ::debug::Destination /tmp/github_runner/b8051a76-30f0-4d00-b74c-6b9af3fcdb5e
#13 6.557 ::debug::Failed to download from "https://github.com/magefile/mage/releases/download/v1.14.0/mage_1.14.0_Linux-32bit.tar.gz". Code(404) Message(Not Found)

Now, fixed result is that docker buildx bake test passes successfully.

Note: I regenerated the dist/ artifacts as needed too and committed those. I'm no TypeScript / Javascript dev, so hopefully that all looks okay.

[crazy-max]

LGTM thanks