[DROP?] add workflow to add all issues of all autora repos linked to maintenance project

[musslick]

• [ ] do this for all issues for autora
• [ ] add this step to the core contributor documentation

Howto: https://docs.github.com/en/issues/planning-and-tracking-with-projects/automating-your-project/adding-items-automatically

[musslick]

Need to potentially drop this because it requires plan update.

[musslick]

Can't be done for now because it requires upgrading our plan.