Make launcher available per-architecture

[RebeccaMahany]

We will likely want to start supporting launcher on ARM for Windows and Linux, and potentially may want to ship separate builds per-architecture for macOS instead of shipping a universal build.

This encompasses:

• [x] Making launcher builds available per-architecture in Github artifacts on merges to main: https://github.com/kolide/launcher/pull/1152
• [x] Publishing launcher builds per-architecture to our mirror and to TUF: https://github.com/kolide/endpoint-releaser/pull/89
• [x] Publishing osquery builds per-architecture to our mirror and to TUF: https://github.com/kolide/endpoint-releaser/pull/94
• [x] Promoting launcher and osquery builds per-architecture to TUF: https://github.com/kolide/endpoint-releaser/pull/94
• [x] New autoupdate code should look for the release for its architecture at <binary>/<os>/<arch>/<channel>/release.json: https://github.com/kolide/launcher/pull/1195 (waiting on next osquery release)
• [x] Create installer for Windows that contains both amd64 and arm64 binaries: https://github.com/kolide/launcher/pull/1796
• [x] Publishing and promoting osquery arm64 windows builds once available (available in next release after https://github.com/osquery/osquery/pull/7918): https://github.com/kolide/endpoint-releaser/pull/108
• [x] New autoupdate work (https://github.com/kolide/launcher/issues/954) must be released
• [ ] Create installer for Linux per-architecture

I think it's likely not worthwhile to update the old TUF server and old autoupdate code to account for this.

[directionless]

Looks right. Order seems about right too. I agree we don't care about the old notary stuff.

[tstromberg]

I learned today that we have employees using Raspberry Pi (arm64) devices for software development, but are unable to use Kolide for compliance monitoring on them so I am very much interested in this issue. Customer support pointed me in the direction of this issue. Thanks!

[directionless]

Hi @tstromberg! We've started digging into windows arm64 support and have a beta for that. We haven't done nearly as much for linux arm64 support.

Which distros are people using?

How do you imagine the installation working? I'm somewhat concerned that the number of possible downloads becomes unmanageable as it grows.

[zenador]

It'd be great to be able to use this on Ubuntu on ARM!