Replace altair based fairness visual with great_tables visual #309

	name: Changelog

	on:
	pull_request: {}

	permissions:
	pull-requests: read

	jobs:
	# Check for label in its own job to allow skipping multiple steps with 'success'
	check-labels:
	name: check labels
	runs-on: ubuntu-latest
	steps:
	- id: check-labels
	env:
	OWNER: ${{ github.repository_owner }}
	REPO_NAME: ${{ github.event.repository.name }}
	PR_ID: ${{ github.event.pull_request.number }}
	GH_TOKEN: ${{ github.token }}
	run: \|
	labels="$(gh api repos/$OWNER/$REPO_NAME/pulls/$PR_ID --jq '.labels.[].name')"
	if [[ $labels != "skip changelog" ]]; then
	echo "needs_entry=true" >> "$GITHUB_OUTPUT"
	else
	echo "needs_entry=false" >> "$GITHUB_OUTPUT"
	fi
	outputs:
	needs_entry: ${{ steps.check-labels.outputs.needs_entry }}

	check-changelog-entry:
	name: has changelog fragment
	runs-on: ubuntu-latest
	needs: check-labels
	if: ${{ needs.check-labels.outputs.needs_entry == 'true' }}
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	# `towncrier check` needs full history to compare
	fetch-depth: 0
	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.10'
	- name: Install towncrier
	run: \|
	pip install --upgrade pip
	pip install towncrier
	- name: Validate changelog
	run: \|
	if ! towncrier check --compare-with origin/${{ github.base_ref }}; then
	echo "Please add a change fragment; see https://github.com/epic-open-source/seismometer/blob/main/changelog/README.rst for details."
	false
	fi

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