Bump minimum Python to 3.9 + add 3.12 and 3.13 #9

	name: GitHub Ubuntu Tests

	on:
	# Template the default branch rather than hard-coding it
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:

	build:
	name: test
	runs-on: ubuntu-latest

	strategy:
	matrix:
	python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]

	steps:
	- uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Environment update install
	run: \|
	python -m pip install --upgrade pip wheel setuptools

	- name: Package install
	run: \|
	python -m pip install -e .[dev]

	- name: Test with pytest
	run: \|
	pytest

Provide feedback