bump v2.21.0 #71

	---
	name: Pytest
	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	test:
	runs-on: ubuntu-latest
	timeout-minutes: 10

	steps:
	- name: Checkout repo
	uses: actions/checkout@v4

	- name: Setup python
	uses: actions/setup-python@v5
	with:
	python-version: "3.x"

	- name: Ensure setuptools up to date.
	run: pip install setuptools

	- name: Install package
	run: \|
	python -m pip install .[test]

	- name: Run tests
	run: \|
	python -m pytest

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