feat(gen): add slack webhook #18

	name: Check links on schedule
	on:
	schedule:
	- cron: "59 23 * * 0" # Runs every Sunday at 23:59
	push: # for testing purposes, do not merge
	jobs:
	linkcheck:
	runs-on: ubuntu-latest
	steps:
	- uses: filiph/[email protected]
	with:
	arguments: https://www.scaleway.com/en/docs/ >> linkcheck_output.txt
	- name: Upload a Build Artifact
	if: always() # Triggers step if previous step fails. Must be added to consecutive steps as well.
	uses: actions/[email protected]
	with:
	name: linkcheck_output.txt
	path: linkcheck_output.txt
	- name: Send a saved artifact to a Slack workflow
	if: always() # Triggers step if previous step fails. Must be added to consecutive steps as well.
	uses: slackapi/[email protected] # ref: https://github.com/slackapi/slack-github-action
	with:
	payload: \|
	text: The link check results are available here.
	payload-file-path: "linkcheck_output.txt"
	webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
	webhook-type: webhook-trigger

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