build(deps): Bump actions/setup-python from 5 to 6 in the ci-cd group #13

	on:
	pull_request:
	branches:
	- develop
	types: [opened, reopened, synchronize, labeled, unlabeled]

	name: check-changes

	env:
	PYTHON_VERSION: '3.13'

	jobs:
	require-changefile:
	runs-on: ubuntu-latest
	timeout-minutes: 2

	steps:
	- uses: actions/checkout@v6
	with:
	fetch-depth: 0

	- uses: actions/setup-python@v6
	with:
	python-version: ${{ env.PYTHON_VERSION }}

	- name: Install Python dependencies
	run: pip install -r scripts/requirements.txt

	- name: Check for change file
	id: check
	env:
	BASE_SHA: ${{ github.event.pull_request.base.sha }}
	HEAD_SHA: ${{ github.event.pull_request.head.sha }}
	LABELS: ${{ toJSON(github.event.pull_request.labels.*.name) }}
	run: \|
	# PRs labeled "no-changelog" are exempt (dependency bumps, CI-only, etc.)
	if echo "$LABELS" \| jq -e 'any(. == "no-changelog")' > /dev/null; then
	echo "::notice::Skipping changelog check (no-changelog label)"
	echo "skip=true" >> "$GITHUB_OUTPUT"
	exit 0
	fi

	# Accept both added and modified change files (excluding README and _headline).
	CHANGES=$(git diff --name-only "$BASE_SHA"..."$HEAD_SHA" -- '.changes/*.md' \
	\| grep -Evi '^\.changes/(README\|_headline)\.md$' \|\| true)

	if [ -z "$CHANGES" ]; then
	echo "::error::No change file found. Add a .changes/<name>.md file describing your change, or add the 'no-changelog' label to skip this check. See .changes/README.md for the format."
	exit 1
	fi

	echo "Found change files:"
	echo "$CHANGES"
	echo "skip=false" >> "$GITHUB_OUTPUT"

	- name: Validate change files
	if: steps.check.outputs.skip != 'true'
	run: python scripts/release.py status

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