[Windows] Address build script failures in k3s when running on Windows

[caroline-suse-rancher]

As a follow-on from this issue, we've identified build script failures when building k3s for Windows. The k3s.exe does get built, but the failures should still be addressed.

As per this comment here: #7259 (comment) , the below error is observed while building the binary

+ docker save docker.io/rancher/klipper-helm:v0.8.2-build20230815 docker.io/rancher/klipper-lb:v0.4.4 docker.io/rancher/local-path-provisioner:v0.0.24 docker.io/rancher/mirrored-coredns-coredns:1.10.1 docker.io/rancher/mirrored-library-busybox:1.34.1 docker.io/rancher/mirrored-library-traefik:2.9.10 docker.io/rancher/mirrored-metrics-server:v0.6.3 docker.io/rancher/mirrored-pause:3.6 -o dist/artifacts/k3s-airgap-images-amd64.tar
+ zstd --no-progress -T0 -16 -f --long=25 dist/artifacts/k3s-airgap-images-amd64.tar -o dist/artifacts/k3s-airgap-images-amd64.tar.zst
dist/artifacts/k3s-airgap-images-amd64.tar : 27.79%   (578331648 => 160704777 bytes, dist/artifacts/k3s-airgap-images-amd64.tar.zst) 
+ pigz -v -c dist/artifacts/k3s-airgap-images-amd64.tar
dist/artifacts/k3s-airgap-images-amd64.tar to <stdout> 
+ '[' amd64 = amd64 ']'
+ cp scripts/airgap/image-list.txt dist/artifacts/k3s-images.txt
~/go/src/github.com/rancher/k3s
stat: cannot statx 'dist/artifacts/k3s': No such file or directory

Expectation is to have the binary built without any errors/failures

[brandond]

• Fixed by Move Windows compilation test to GHA and enable tests #11713