Sentry integrates with GitHub Actions, a service that automates software development workflows, allowing developers to create customized, automated workflows and combine their favorite third-party tools directly from within a GitHub repository. To use this integration, developers need to set up an Internal Integration token in Sentry and configure it as an environment variable in their workflow file. This allows the workflow to authenticate with Sentry's API when creating a new release. The workflow can then create a new Sentry release and deploy it to various environments using the Sentry CLI or other tools like Heroku. By combining this integration with GitHub Actions, developers can customize their development pipeline to suit their needs.