[Github organisation proposition] Rename master branch

[Amaras]

Following all the discussions in many open source projects' communities, I wonder if we should also get rid of the master terminology.
I guess the default now is to call the default branch main, with projects as big as Python renaming their master branch (and only breaking GitHub once in the process).
So, what do you guys think of that change?

[leios]

I honestly don't mind the change. Now is the time to do it because things are quiet. Can we get a list of resources we need to modify?

I know we need to change the wiki and Buttercak3's guide (but maybe it's fine to leave it a little outdated with the old master terminology, but mention that in the link to the videos?)

[ntindle]

This will also require updating the workflows, just a find-replace master -> main

[ntindle]

Is this something we are in favor of? If so assign to me @leios