Using installer script in Ubuntu 22.04 on Rasperry Pi 4 causes a 404 error on checksum download.

[willkara]

Environmental Info:

RKE2 Version:
N/A

Node(s) CPU architecture, OS, and Version:
Ubuntu 22.04
Raspberry Pi 4

Cluster Configuration:
N/A

Describe the bug:
Running the installer script causes a 404 error when trying to download checksums for https://github.com/rancher/rke2/releases/download/v1.26.12+rke2r1/sha256sum-arm64.txt.

Taking a look at that respective release page shows that there isn't a checksum file generate for arm64

Steps To Reproduce:
Run installer script in above given architecture and RPi version

Expected behavior:
Checksums to download properly and file to exist.

Actual behavior:

willkara@pleiades-1:~$ curl -sfL https://get.rke2.io | sudo sh -
[INFO]  finding release for channel stable
[INFO]  using v1.26.12+rke2r1 as release
[INFO]  downloading checksums at https://github.com/rancher/rke2/releases/download/v1.26.12+rke2r1/sha256sum-arm64.txt
curl: (22) The requested URL returned error: 404

[skanakal]

its available from 1.27 and newer versions... see this, Add arm64 support #4335
use the flag INSTALL_RKE2_VERSION to set the version...

https://github.com/rancher/rke2/releases/tag/v1.27.3%2Brke2r1