ci: drop mypy checks with Python 3.9 #647

	name: test distribution build
	on:
	push:
	branches:
	- master
	tags:
	- v*
	pull_request:
	branches:
	- master
	workflow_dispatch:

	jobs:
	build-package:
	name: Build and test Python distro
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.x'

	- name: Install python-build, check-manifest, and twine
	run: \|
	python -m pip install --upgrade pip setuptools wheel
	python -m pip install build check-manifest twine
	python -m pip list

	- name: Check MANIFEST
	run: \|
	check-manifest --verbose

	- name: Build a wheel and a sdist
	run: \|
	python -m build --outdir dist/ .

	- name: Verify the distribution
	run: twine check dist/*

	- name: List contents of sdist
	run: python -m tarfile --list dist/cabinetry-*.tar.gz

	- name: List contents of wheel
	run: python -m zipfile --list dist/cabinetry-*.whl

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