Is there a way to get the user from gitlab, who've triggered pipeline?

Build Environment
1

Hi all. I’ve managed to establish a pipeline to automate my deployment and upon failed or success, circle ci will send a notification to my slack channel with its status. The issue im facing right now, is trying to grab the user / username from the gitlab repo, who’ve triggered the pipeline. So far I’m assuming it’s possible since it’s visible via the CircleCI dashboard, but is there a way to add that as part of my slack integration ? Here’s my current yml file, obfuscated.

orbs:
  slack: circleci/slack@5.1.1

jobs:
  deploy:
    circleci_ip_ranges: true
    docker:
      - image: cimg/node:20.11.0
    steps:
      # check versionings
      - run: node -v
      - run: yarn -v
      - run: ssh -V
      - checkout
      - run:
          name: Install Dependencies
          command: |
            echo "Installing dependencies ..."
            yarn install --frozen-lockfile
      - run:
          name: Building React app for staging
          command: |
            yarn build:staging
      - run:
          name: Package build directory
          command: |
            tar -czf build.tar.gz build
      - add_ssh_keys:
          fingerprints:
            - "SHA256:IxxxxxxxxxxxxxxxY"
      - run:
          name: Add bastion to known host
          command: |
            ssh-keyscan $BASTION_STAGING_SERVER >> ~/.ssh/known_hosts
      - run:
          name: SCP build to staging server
          command: |
            scp -o ProxyJump=ubuntu@$BASTION_STAGING_SERVER -o StrictHostKeyChecking=no build.tar.gz ubuntu@$BPAM_STAGING_SERVER:~/
      - run:
          name: SSH to BPAM server and deploy
          command: |
            ssh -o StrictHostKeyChecking=no -J ubuntu@$BASTION_STAGING_SERVER ubuntu@$BPAM_STAGING_SERVER "bash -l -c '
              echo Logged into server !;
              sudo tar -xzf build.tar.gz --overwrite --directory /var/lib/bpam/ && \
              rm build.tar.gz && \
              sudo systemctl restart nginx
            '"
      - run:
          name: Exit any dangling process
          command: exit 0
      - slack/notify:
          channel: C01xxxxD
          event: pass
          custom: |
            {
              "blocks": [
                {
                  "type": "section",
                  "text": {
                    "type": "mrkdwn",
                    "text": "*Status:*🟢 Job Success !\n*$CIRCLE_PROJECT_REPONAME* on branch *$CIRCLE_BRANCH*"
                  }
                }, {
                  "type": "section",
                  "fields": [
                    {
                      "type": "mrkdwn",
                      "text": "*Project:*\n$CIRCLE_PROJECT_REPONAME"
                    }, {
                      "type": "mrkdwn",
                      "text": "*Branch:*\n$CIRCLE_BRANCH"
                    }, {
                      "type": "mrkdwn",
                      "text": "*Trigger User:*\n$CIRCLE_USERNAME"
                    }, {
                      "type": "mrkdwn",
                      "text": "*Job:*\n$CIRCLE_JOB"
                    }
                  ]
                }
              ]
            }
      - slack/notify:
          channel: C01xxxxD
          event: fail
          custom: |
            {
              "blocks": [
                {
                  "type": "section",
                  "text": {
                    "type": "mrkdwn",
                    "text": "*Status:*\n🔴 Job Failed !\n*$CIRCLE_PROJECT_REPONAME* on branch *$CIRCLE_BRANCH*"
                  }
                }, {
                  "type": "section",
                  "fields": [
                    {
                      "type": "mrkdwn",
                      "text": "*Project:*\n$CIRCLE_PROJECT_REPONAME"
                    }, {
                      "type": "mrkdwn",
                      "text": "*Branch:*\n$CIRCLE_BRANCH"
                    }, {
                      "type": "mrkdwn",
                      "text": "*Trigger User:*\n$CIRCLE_USERNAME"
                    }, {
                      "type": "mrkdwn",
                      "text": "*Job:*\n$CIRCLE_JOB"
                    }
                  ]
                }
              ]
            }
     
workflows: 
  test:
    jobs:
      - deploy:
          filters:
            branches:
              only: staging # only run this job on the staging branch 
          context:
            - slack-secrets
3

Have you tried pipeline.trigger_parameters.gitlab.user_id