CI: add Python 3.13 to test matrix #9

	---
	# configuration for GitHub Actions
	name: rerobots Python client library tests
	on:
	push:
	pull_request:
	jobs:
	build:
	name: Build
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	python-version: [3.8, 3.9, '3.10', 3.11, 3.12, 3.13]
	steps:
	- uses: actions/checkout@v4
	- name: Prepare Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	cache: 'pip'
	- name: Install
	run: \|
	pip install .[test]
	- name: Lint
	run: \|
	black --check rerobots
	- name: Run tests
	run: \|
	cd tests
	pytest -v --ignore=realserv/

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