Make sure "main" branches are protected

[leouieda]

Description:

As a general safety measure, it would be good the main branches of all repositories were protected from force pushes or pushes of any kind really. This way changes have to go through PRs and it's harder to accidentally push to main instead.

Most repos should already have something like this in place but it would be good to double check and make sure it's standard in all our repos.

Apply to:

• [x] boule
• [x] harmonica
• [x] pooch
• [x] verde
• [x] ensaio
• [x] dependente
• [x] website
• [x] tutorials
• [X] community: Can't because HackMD needs to push the call notes.
• [x] .github

Further instructions:

• Start by opening Pull Requests on each repository listed above.
• Optionally, we can open Issues on each repository if further discussion specific to that repository is needed.
• Mention this Issue on every Issue or Pull Request opened on each opened: Related to fatiando/community#XX
• Check-off the repository on the list above once the Pull Request is merged.
• Close this issue when all items are checked-off.

We want your help!

We know that maintenance tasks are very demanding, so we don't expect a single person to tackle this issue by themselves. Any help is very welcomed, so please comment below that you want to take care of the changes on any repository and we will assign it to you.

[santisoler]

Done for Harmonica! Thanks for reminding this

By the way, this is what I did for Harmonica. It can serve as a guide for the other repos:

[leouieda]

Thanks for sharing @santisoler! Updated Boule to match.

[leouieda]

Done for all except community which needs to be available for pushes to main by HackMD for the meeting notes archive.