AADLoginForLinux extension not working

AADLoginForLinux extension is failing

`[ExtensionOperationError] Non-zero exit code: 51, /var/lib/waagent/Microsoft.Azure.ActiveDirectory.AADSSHLoginForLinux-1.0.1595.1/./installer.sh install [stdout] Machine OS: ubuntu v20.04 Installing... Stopping apt-daily.timer Stopping apt-daily-upgrade.timer Configuring microsoft-prod repo Starting apt-daily-upgrade.timer Starting apt-daily.timer [stderr] Running scope as unit: Microsoft.Azure.ActiveDirectory.AADSSHLoginForLinux_1.0.1595.1_dbfa5be8-5f60-411c-9a2e-6789e11d0418.scope % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 100 16 100 16 0 0 5333 0 --:--:-- --:--:-- --:--:-- 5333 curl: (22) The requested URL returned error: 404 Not Found`

Ubuntu repositories seems to be broken
`curl -f -sS "https://packages.microsoft.com/ubuntu/20.04/prod/pool/main/a/aadsshlogin/aadsshlogin_1.0.015950001_amd64.deb"
curl: (22) The requested URL returned error: 404 Not Found`

Start by reproducing the reported installer command on Ubuntu 20.04 and checking the Microsoft package URL shown in the issue. Trace the AADLoginForLinux extension installation path to determine why the requested package returns 404; done means the extension installation completes without the reported error.

Written by the indexing model from the issue text.