Add Slack notification on deployment failure #21931

	name: CI

	on:
	push:
	branches:
	- main
	pull_request:
	workflow_dispatch:
	inputs:
	ref:
	description: The branch, tag or SHA to checkout
	default: main
	type: string
	schedule:
	# Deploy hourly between 9am and 7pm on weekdays
	- cron: "0 9-19 * * 1-5"

	jobs:
	test-ruby:
	name: Test Ruby
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	ref: ${{ inputs.ref \|\| github.ref }}
	show-progress: false
	- name: Clone publishing api
	uses: actions/checkout@v4
	with:
	repository: alphagov/publishing-api
	ref: main
	path: tmp/publishing-api
	show-progress: false
	- uses: ruby/setup-ruby@v1
	with:
	bundler-cache: true
	- run: bundle exec rake
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	GOVUK_CONTENT_SCHEMAS_PATH: tmp/publishing-api/content_schemas
	SKIP_PROXY_PAGES: true

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