For this action to work you must explicitly allow GitHub Actions to create pull requests. This setting can be found in a repository's settings under Actions > General > Workflow permissions. For ...

Pull requests let you tell others about changes you've pushed to a GitHub repository. Once a pull request is sent, interested parties can review the set of changes, discuss potential modifications, ...

GitHub has introduced draft pull requests to handle work-in-progress scenarios where you might want to open a PR or start a conversation with your teammates before your code is ready to be reviewed.

GitHub highlighted improvements to its Visual Studio Code extension that lets developers manage pull requests from the open source code repository with a few clicks from within the code editor.

Konrad Lawson introduces us to the social aspects of GitHub through forks and pull requests.