* Don't create a PR if all changesets are empty
Fixes#205.
Note that this maintains the previous behavior that if there are any
changesets (even empty ones), the action does not publish packages.
* Create three-needles-protect.md
* Update .changeset/three-needles-protect.md
Co-authored-by: Mateusz Burzyński <mateuszburzynski@gmail.com>