Have specific user commit after PR merge on branch

gistfile1.txt

name: Bump Version and Commit and tag

on:
  push:
    branches:
      - release/testnet

jobs:
  bump-version:
    if: "!contains(github.event.head_commit.message, 'chore(release):')"
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.PAT_TOKEN }}
          fetch-depth: 0

      - name: Set up Node.js
        uses: actions/setup-node@v2
        with:
          node-version: '21'

      - name: Install dependencies
        run: npm install

      - name: Configure git user
        run: |
          git config user.name "RepositoryCI"
          git config user.email "contact+githubci@acme.com"

      - name: Stage changes
        run: |
          git add .

      - name: Bump version without tag
        id: bump_version
        run: |
          CURRENT_VERSION=$(node -p "require('./package.json').version")
          echo "Current version: $CURRENT_VERSION"
          NEW_VERSION=$(npm version patch --no-git-tag-version)
          echo "New version: $NEW_VERSION"
          git commit -am "chore(release): $NEW_VERSION"

      - name: Amend the commit to include all changes
        run: |
          git add .
          git commit --amend --no-edit

      - name: Push changes
        env:
          GITHUB_TOKEN: ${{ secrets.PAT_TOKEN }}
        run: |
          git pull --rebase
          git push origin HEAD:release/testnet --force-with-lease