Queue buffers when auto demand is low enough #1434

	name: Enforce CHANGELOG Update
	on:
	pull_request:
	branches:
	- master
	workflow_call:
	jobs:
	check-changelog-update:
	if: ${{ !contains( github.event.pull_request.labels.*.name, 'no-changelog') }}
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	- id: files
	uses: jitterbit/get-changed-files@v1
	- name: Verify changes in CHANGELOG file
	id: verify-changes
	run: \|
	changelogPresent=0
	for changed_file in ${{ steps.files.outputs.all }}; do
	if [ "$changed_file" == "CHANGELOG.md" ]; then
	changelogPresent=1
	break
	fi
	done
	echo "::set-output name=changelog-updated::$changelogPresent"
	- name: Check
	if: ${{ steps.verify-changes.outputs.changelog-updated == 0 }}
	uses: actions/github-script@v3
	with:
	script: \|
	core.setFailed('Add label "no-changelog" or update CHANGELOG.md on pull request to master.')

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