create .github/workflows folder only when GitHub action is enabled

[fdiblen]

Create .github/workflows folder only when the number of enabled GitHub Actions is one or more.

[fdiblen]

The same applies to .github folder

[abelsiqueira]

With #593 (remove docs from minimum), we will have a GitHub action in a separate place, so this isn't straightforward anymore.
Maybe create a computed after all questions?

[lyashevska]

Fixed in #653