You can now simplify the process of configuring GitHub Actions workflows for building serverless applications with a single line. The new AWS-supported setup-sam GitHub Action makes it easier to keep consistency across GitHub Actions runners, stay up-to-date with AWS Serverless Application Model CLI (AWS SAM CLI) tooling, and select its versions. The AWS SAM CLI is a developer tool that makes it easier to build, locally test, package, and deploy serverless applications. GitHub Actions is a service that helps automate tasks within the software development lifecycle. GitHub Actions runner is the application that runs a job from a GitHub Actions workflow.
Source:: Amazon AWS