One of the most requested features for GitHub Projects has been to provide separate triggers for issues and pull requests. Today, we have shipped a change to manage issue and pull request automation rules separately within your project boards.
We’ve also added a new template for Bug Triage to manage this process easily with your teams and contributors.
Lastly, whenever a pull request is added to your project, it will automatically move into the In progress column to more accurately reflect ongoing work.
Take a look at the documentation for more information.