qmk_firmware/.github/workflows/develop_update.yml

name: Update develop after master merge

#permissions:
#  contents: write
#
#on:
#  push:
#    branches:
#    - master

jobs:
  develop_update:
    runs-on: ubuntu-latest

    if: github.repository == 'qmk/qmk_firmware'

    steps:
    - uses: actions/checkout@v3
      with:
        token: ${{ secrets.QMK_BOT_TOKEN }}
        fetch-depth: 0

    - name: Disable automatic eol conversion
      run: |
        echo "* -text" > .git/info/attributes

    - name: Checkout develop
      run: |
        git fetch origin master develop
        git checkout develop

    - name: Update develop from master
      run: |
        git config --global user.name "QMK Bot"
        git config --global user.email "hello@qmk.fm"
        git merge origin/master
        git push origin develop