mutation CancelGitHubActionsWorkflowRun($codebaseRepositoryId: ID!, $workflowRunId: ID!, $source: GitHubRequestSource!) {
  cancelGitHubActionsWorkflowRun(codebaseRepositoryId: $codebaseRepositoryId, workflowRunId: $workflowRunId, source: $source)
}

{
  "codebaseRepositoryId": "id",
  "workflowRunId": "id",
  "source": "GITHUB_API"
}

{
  "data": {
    "cancelGitHubActionsWorkflowRun": true
  }
}