arkade get buildx on arm64 fails to get published binary

[vielmetti]

Expected Behaviour

arkade get buildx on arm64 tries to fetch the file buildx-v0.4.2.linux-aarch64, whereas the project has published the file buildx-v0.4.2.linux-arm64.

Current Behaviour

arkade get buildx fails to download the correct binary for arm64.

Possible Solution

Fix the tools configuration to point to the correct binary.

Steps to Reproduce (for bugs)

1. login to an arm64 system
2. install arkade
3. arkade get buildx fails
4. inspect https://github.com/docker/buildx/releases/tag/v0.4.2 to see that there is a buildx binary to be had.

Context

Part of an effort to test arkade get for arm64.

Your Environment

• What Kubernetes distribution are you using?

kubectl version

• Operating System and version (e.g. Linux, Windows, MacOS):

Ubuntu 20.04 LTS on WSL1 on Windows on Arm.

• What arkade version is this?

arkade version

Version: 0.7.13
Git Commit: a7418b1652e1f96c6f86985572c828a96d136836

Are you a GitHub Sponsor (Yes/No?)

Check at: https://github.com/sponsors/alexellis

• [x] Yes
• [ ] No

[alexellis]

@vielmetti happy to take a PR for this

I think you're finding that very few arkade users have an arm64 desktop.

Have you just bought one?