Add auto-update action #1

	name: Auto update

	on: push

	jobs:
	format-code:
	runs-on: ubuntu-latest

	permissions:
	# Give the default GITHUB_TOKEN write permission to commit and push the
	# added or changed files to the repository.
	contents: write

	steps:
	- uses: actions/checkout@v4

	- uses: cachix/install-nix-action@v25
	with:
	github_access_token: ${{ secrets.GITHUB_TOKEN }}

	# Other steps that change files in the repository
	- run : nix flake update

	# Commit all changed files back to the repository
	- uses: stefanzweifel/git-auto-commit-action@v5
	with:
	commit_message: Auto update

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