The actions docker/login-action@v1, digicert/ssm-code-signing@v0.0.2, rtcamp/action-slack-notify@v2, sendgrid/dx-automator/actions/release@main, sendgrid/dx-automator/actions/datadog-release-metric@main, and 3 others are not allowed in sendgrid/sendgrid-csharp because all actions must be from a repository owned by your enterprise or created by GitHub. All actions must also be pinned to a full-length commit SHA.