Testing of some distributions fail now

[JJ]

After the rearrangement of distributions by alphabetical order, tests have been run again on many (or all, not sure) distributions, resulting in these failures

The following urls failed:

https://raw.githubusercontent.com/perl6/Blin/master/META6.json

https://raw.githubusercontent.com/perl6/DBIish/master/META6.json

https://raw.githubusercontent.com/perl6/Perl6-MIME-Base64/master/META6.json

https://raw.githubusercontent.com/perl6/form/master/META6.json

https://raw.githubusercontent.com/perl6/perl6-lwp-simple/master/META6.json

https://raw.githubusercontent.com/perl6/perl6-pod-to-bigpage/master/META6.json

https://raw.githubusercontent.com/perl6/whateverable/master/META6.json

https://raw.githubusercontent.com/perlpilot/benchmark/master/META.info

https://raw.githubusercontent.com/perlpilot/p6-AI-FANN/master/META6.json

https://raw.githubusercontent.com/perlpilot/p6-Astro-Sunrise/master/META6.json

https://raw.githubusercontent.com/perlpilot/p6-HexDump-Tiny/master/META6.json

https://raw.githubusercontent.com/perlpilot/p6-IO-Notification-Recursive/master/META6.json

https://raw.githubusercontent.com/perlpilot/p6-Locale-US/master/META6.json

https://raw.githubusercontent.com/perlpilot/p6-Math-Trig/master/META6.json

https://raw.githubusercontent.com/perlpilot/p6-Questhub/master/META6.json

https://raw.githubusercontent.com/perlpilot/p6-Test-Class/master/META6.json

https://raw.githubusercontent.com/pierre-vigier/Perl6-Data-MessagePack/master/META6.json

https://raw.githubusercontent.com/pierre-vigier/Perl6-HTTP-Signature/master/META6.json

https://raw.githubusercontent.com/prodotiscus/perl6-Dictionary-Create/master/META6.json

As an immediate action, we should maybe try and notify their authors. As a more long-term thing, and looking at improving the state of the ecosystem we should maybe run a GitHub action or something periodically, and decide on a solution for them.