When we get a GitHub Pull Request created by GitHub App using GraphQL API, the pull request author name doesn't have `[bot]` but a commit author has `[bot]`.

get_pull_request.graphql

query($owner: String!, $repo: String!, $pr: Int!) {
  repository(owner: $owner, name: $repo) {
    pullRequest(number: $pr) {
      author {
        login
      }
      commits(first: 30) {
        nodes {
          commit {
            author {
              user {
                login
              }
            }
          }
        }
      }
    }
  }
}

response.json

{
  "data": {
    "repository": {
      "pullRequest": {
        "author": {
          "login": "dependabot"
        },
        "commits": {
          "nodes": [
            {
              "commit": {
                "author": {
                  "user": {
                    "login": "dependabot[bot]"
                  }
                }
              }
            }
          ]
        }
      }
    }
  }
}

variables.json

{
  "owner": "aquaproj",
  "repo": "aquaproj.github.io",
  "pr": 1499
}