bug#29060: CPAN mirror packages no longer available on the server, apparently they've been moved to GitHub

[BJH2017]

Several packages that were downloaded from mirror.ibcp.fr or ftp.ciril.fr are no longer available on these servers. These packages include at least:

* CGI 4.35

* Test-Deep 120

Newer versions of these packages are available on these servers, however. Version 120 of Test Deep, and the newer versions are available from GitHub, however https://github.com/rjbs/Test-Deep/releases. Version 4.35 of CGI is also available on GitHub -- https://github.com/leejo/CGI.pm/releases.