Switch link checker to lychee (and let it run more often) #2

	name: Checks
	on:
	push:
	pull_request:
	schedule:
	# Run on the first of each month at 9:00 AM (See https://pubs.opengroup.org/onlinepubs/9699919799/utilities/crontab.html#tag_20_25_07)
	- cron: "0 9 1 * *"
	workflow_dispatch:
	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- name: Set up Git repository
	uses: actions/checkout@v4
	with:
	show-progress: ''
	- name: markdownlint-cli2-action
	uses: DavidAnson/markdownlint-cli2-action@v9
	with:
	globs: \|
	*/.md
	#node_modules
	lychee:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	show-progress: 'false'
	- name: Restore lychee cache
	uses: actions/cache@v4
	with:
	path: .lycheecache
	key: cache-lychee-${{ github.sha }}
	restore-keys: cache-lychee-
	- name: Link Checker
	id: lychee
	uses: lycheeverse/[email protected]
	with:
	fail: true
	args: --accept '200,201,202,203,204,403,429,500' --max-concurrency 1 --cache --no-progress --exclude-all-private './*/.md'

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