Update submodules (nightly) #758

	name: Update submodules (nightly)
	on:
	# Schedule updates
	schedule:
	- cron: "0 0 * * *"
	jobs:
	github-metrics:
	runs-on: ubuntu-latest
	permissions:
	contents: write
	steps:
	- name: Checkout repository and submodules
	uses: actions/checkout@v3
	with:
	submodules: recursive
	token: ${{ secrets.PRIVATE_TOKEN_GITHUB_KERRYEON }}

	- name: Update submodules recursively
	run: \|
	git submodule update --init --recursive
	git submodule foreach --recursive git checkout master

	- name: Commit update
	run: \|
	git config user.name "GitHub Actions - Update submodules"
	git config user.email "[email protected]"
	git add --all
	git commit -m "Update submodules" \|\| echo "No changes to commit"
	git push

Provide feedback