Adds workflow:create command #6194

	name: CHANGELOG.md PR check

	on:
	pull_request:
	types:
	- opened
	- synchronize
	- labeled
	- unlabeled

	concurrency:
	group: changelog-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	pr-changelog-entry:
	name: Check CHANGELOG.md updated
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Check if CHANGELOG.md was updated
	id: changelog-updated
	uses: tj-actions/changed-files@v41
	with:
	files: CHANGELOG.md
	- name: Fail if CHANGELOG.md was not updated and the "no changelog" label is absent
	if: steps.changelog-updated.outputs.any_changed == 'false' && !contains(github.event.pull_request.labels.*.name, 'no changelog')
	uses: actions/github-script@v6
	with:
	script: \|
	core.setFailed('Please add a changelog entry!')
	- uses: mshick/add-pr-comment@v2.1.0
	if: always()
	with:
	message-id: changelog-entry-check
	refresh-message-position: true
	message: ${{ contains(github.event.pull_request.labels.*.name, 'no changelog') && '⏩ The changelog entry check has been skipped since the "no changelog" label is present.' \|\| '✅ Thank you for adding the changelog entry!' }}
	message-failure: \|
	❌ It looks like a changelog entry is missing for this PR. Add it manually to CHANGELOG.md.
	⏩ If this PR doesn't require a changelog entry, such as if it's an internal change that doesn't affect the user experience, you can add the "no changelog" label to the PR.

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