Rawgit reached EOL, still used in AppVeyor builds

AppVeyor build logs:

2020-01-11 11:18:01-- http://rawgit.com/transcode-open/apt-cyg/master/apt-cyg
Resolving rawgit.com (rawgit.com)... failed: No address associated with hostname.
wget: unable to resolve host address 'rawgit.com'
Command exited with code 4

Comment on rawgit.com:

RawGit has reached the end of its useful life
October 8, 2018

RawGit is now in a sunset phase and will soon shut down. It's been a fun five years, but all things must end.

GitHub repositories that served content through RawGit within the last month will continue to be served until at least October of 2019. URLs for other repositories are no longer being served.
If you're currently using RawGit, please stop using it as soon as you can.