submodule_update.yml

name: Submodule update (manual)

on:
  #schedule:
  #  # * is a special character in YAML so you have to quote this string
  #  - cron:  '0 12 * * *'
  workflow_dispatch:

jobs:
  submodule_update:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v2
      
    - name: Checkout submodules
      run: git submodule update --init --recursive
      
    # Update references
    - name: Git Submodule Update
      run: |
        git pull --recurse-submodules
        git submodule update --remote --recursive
        
    - uses: stefanzweifel/git-auto-commit-action@v4
      with:
        commit_message: Automatic submodule update
        commit_user_name: bot-stereolabs
        commit_user_email: bot-stereolabs@example.org
        commit_author: bot-stereolabs <actions@github.com>
        status_options: '--untracked-files=no'