gh/workflows: Set custom DNS resolver for LVH
gh/workflows: Set custom DNS resolver for LVH

It seems that LVH VM images contain /etc/resolv.conf of a host which
built them.

Use 1.1.1.1 until the issue has been resolved.

Signed-off-by: Martynas Pumputis <6b0d31c0d563223024da45691584643ac78c96e8@lambda.lt>

cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium