CI: Simplify testing for examples #190

	## Use workflows from ninenines/ci.erlang.mk to test Cowboy.

	name: Check Cowboy

	on:
	push:
	branches:
	- master
	pull_request:
	schedule:
	## Every Monday at 2am.
	- cron: 0 2 * * 1

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	cleanup-master:
	name: Cleanup master build
	runs-on: ubuntu-latest
	if: ${{ github.event_name == 'schedule' }}
	permissions:
	actions: write
	steps:

	- name: Cleanup master build if necessary
	run: \|
	gh cache delete Linux-X64-Erlang-master -R $REPO \|\| true
	gh cache delete macOS-ARM64-Erlang-master -R $REPO \|\| true
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	REPO: ${{ github.repository }}

	check:
	name: Cowboy
	needs: cleanup-master
	if: ${{ !cancelled() }}
	uses: ninenines/ci.erlang.mk/.github/workflows/ci.yaml@master

	# The examples test suite is nice to run but typically not
	# important. So we run them after we are done with the other
	# test suites. At this point we know that Erlang was built
	# so we can just use the latest version.

	examples:
	name: Check examples
	runs-on: 'ubuntu-latest'
	steps:

	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Install latest Erlang/OTP
	uses: erlef/setup-beam@v1
	with:
	otp-version: latest

	- name: Run ct-examples
	run: make ct-examples

	- name: Upload logs
	uses: actions/upload-artifact@v4
	if: always()
	with:
	name: Common Test logs (examples)
	path: \|
	logs/
	!logs/**/log_private

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