Add Cairo update check workflow #3

	name: Cairo Update Check

	on:
	push: # TODO this is just for testing
	workflow_dispatch:
	inputs:
	slack:
	description: "Send Slack notification on failure"
	type: boolean
	default: true
	schedule:
	- cron: '0 0 * * *'

	concurrency:
	group: ${{ github.workflow }}
	cancel-in-progress: true

	jobs:
	check:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@stable
	- uses: software-mansion/setup-scarb@v1

	- name: Build xtasks
	run: cargo build -p xtask

	- name: Upgrade Cairo to latest main commit
	run: \|
	CAIRO_REV=$(git ls-remote --refs "https://github.com/starkware-libs/cairo" main \| awk '{print $1}')
	echo "::notice::Checking Cairo commit: https://github.com/starkware-libs/cairo/commit/$CAIRO_REV"
	cargo xtask set-cairo-version --rev "$CAIRO_REV"

	- run: cargo test --profile=ci --no-fail-fast

	notify_failed:
	runs-on: ubuntu-latest
	if: always() && !(inputs.slack) && needs.check.result == 'failure'
	needs: check
	steps:
	- name: Notify the team about workflow failure
	uses: slackapi/[email protected]
	env:
	SLACK_WEBHOOK_URL: ${{ secrets.SLACK_CAIRO_UPDATE_CHECK_FAILURE_WEBHOOK_URL }}
	with:
	payload: \|
	{
	"url": "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
	}

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