cdn.dl.k8s.io doesn't resolve anymore

We noticed a problem with cdn.dl.k8s.io at around 15:00 UTC on Wednesday Feb 25 2026, when a daily CI job failed with this error: ``` % curl https://cdn.dl.k8s.io/release/stable-1.32.txt curl: (6) Could not resolve host: cdn.dl.k8s.io ``` We can confirm `cdn.dl.k8s.io` was resolving OK around that same time the day before. Looking into this today, we notice that `dl.k8s.io` still works: ``` % curl https://dl.k8s.io/release/stable-1.32.txt v1.32.13 ``` So, is this planned downtime, or no? Shall we switch to using `dl.k8s.io` from now on? If this change was announced somewhere, I wasn't able to find it.