fix multi-arch Windows image preference

[fsiegmund]

Signed-off-by: Frederik Siegmund siegmund@slb.com

• What I did

Changes in platforms/defaults_windows.go:

Multi-arch windows with UBR matching host UBR will be preferred

Change sorting logic of multi-arch image. Images that exactly match host OS version will be moved to the top, followed by versions that match host build, in descending order.

• How to verify it

See #6693

The image with exact host version will be preferred. Otherwise as logic above.

Description for the changelog
fix multi-arch Windows image preference

Note: This fix was first submitted to Moby. On recommendation from thaJeztah I implemented the same fix for containerd.

[k8s-ci-robot]

Hi @fsiegmund. Thanks for your PR.

I'm waiting for a containerd member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[theopenlab-ci]

Build succeeded.

• containerd-build-arm64 : SUCCESS in 4m 32s (non-voting)
• containerd-test-arm64 : SUCCESS in 5m 58s (non-voting)
• containerd-integration-test-arm64 : SUCCESS in 25m 24s (non-voting)