Create pr-artifact.yml

[jwvanderbeck]

Make sure you have read and understood the contributing guidelines!

Pull Requests that don't follow the guidelines will be rejected. If you need help or are confused just ask, and we will be glad to help.

• [ ] PR being applied to the correct Feature Branch or dev
• [ ] PR is not being sent to master

[jwvanderbeck]

The bot is also supposed to comment with a build link but having trouble getting that working :(