Mark notifications for closed PRs as done

This is a template repository wich you can use to create your own private repository with action which will mark all of your notifications related to closed pull requests as done.

Setup

1. Use this template to create private repository
2. Create Github PAT with notitifications and repository access
3. Create actions secret named GH_TOKEN in your newly created repository (1) and fill it with value of your secret (2)
4. Go to actions, select Mark notifications for closed PRs as done and click on Run workflow
5. After action finishes you should see a summary with number of notifications marked as done