JP-3749: Add mypy type checking #7128

	name: changelog

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

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

	jobs:
	check:
	if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-changelog-entry-needed') }}
	runs-on: ubuntu-latest
	steps:
	- uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5.2.0
	with:
	python-version: 3
	- uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
	with:
	fetch-depth: 0
	- run: pip install .
	- run: pip install towncrier
	- run: towncrier check
	- run: towncrier build --draft \| grep -P '#${{ github.event.number }}'
	prevent_manually_editing_changlog:
	if: ${{ !contains(github.event.pull_request.labels.*.name, 'allow-manual-changelog-edit') }}
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
	with:
	fetch-depth: 0
	- name: prevent direct changes to `CHANGES.rst`
	run: git diff HEAD ${{ github.event.pull_request.base.sha }} --no-patch --exit-code CHANGES.rst

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