update-sm.yml

name: Update submodules

on:
  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

jobs:
  update:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          submodules: true
          token: ${{ secrets.PAT }}
      - name: Pull & update submodules
        run: |
          git submodule update --remote
      - name: Commit & push changes
        uses: stefanzweifel/git-auto-commit-action@v4
        with:
          commit_message: Update submodules