Release workflow requires undocumented write access to repository

[tomaspinho]

Hello!

Thank you so much for this project, it has been a boon while developing my first web extension. ❤️

While setting up a new repository from the template, I've noticed that the "Release" workflow needs write permissions to the repository for git push, but its need is not documented anywhere. Specifically, the following setting needs toggleing:

The default is: "Read repository contents and packages permissions"