Plan to disable azureedge.net domains

[richlander]

We will be disabling use of dotnetcli.azureedge.net and dotnetbuilds.azureedge.net in early 2025. We will start with "scream tests" as early as 2025.02.03 (Feb 3). We will disable domains for ~ one day at a time. We may disable them for longer if we don't hear anything.

At the latest, domains will be permanently disabled on the following dates:

• 3/31 -- dotnetbuilds.azureedge.net
• 5/31 -- dotnetcli.azureedge.net

We may disable the domains much sooner.

Test files:

• https://dotnetcli.azureedge.net/dotnet/health.txt
• https://dotnetbuilds.azureedge.net/public/health.txt

Users should switch to builds.dotnet.microsoft.com and ci.dot.net, respectively, at their earliest convenience. Please email us at dotnet@microsoft.com if this is causing business continuity challenges.

Context: #9671

[pavel-purma]

https://dotnetbuilds.azureedge.net/ was disabled at the Traffic Manager level.
DNS for dotnetbuilds.azureedge.net domain do not resolve to any IP now.