Travis-CI.org has shut down

[Rikki Cattermole]

Hello everyone!

A little devops update, since there is a number of projects in 
the D-sphere that have used travis-ci.org in the past.

As per their blog post[0], they have shut down their .org domain.

What this means to us as developers is if you still use 
travis-ci.org for your CI rather than travis-ci.com it will no 
longer work and therefore checks won't pass when making PR's.

Over on the dlang-community organization, Amin Yahyaabadi 
(@aminya) has very kindly created a PR that replaces DCD's Travis 
scripts over to Github Actions. I have tested it after merging, 
and it is good to go!

Furthermore, if you need any admin assistance with bringing any 
dlang-community repository from travis-ci.org to another CI 
system please feel free to ping me (@rikkimax).

[0] https://blog.travis-ci.com/2021-05-07-orgshutdown