Add workflow for deprecated python + remove 3.8 support #4

	name: Deprecated Python CI

	on:
	workflow_dispatch:
	schedule:
	- cron: '0 20 * * 3' # Every Wednesday at 20:00 UTC
	push:
	branches:
	- issue-2681-py38

	jobs:
	tests:
	name: Test on Python ${{ matrix.python-version }} (deprecated)
	continue-on-error: true
	strategy:
	fail-fast: false
	matrix:
	include:
	- python-version: '3.8'
	os: ubuntu-latest

	runs-on: ${{ matrix.os }}

	steps:
	- name: Check out repository
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: Upgrade pip
	run: python -m pip install --upgrade pip

	- name: Relax requires-python lower bound for installation
	run: \|
	sed -i.bak -E "s/requires-python = '>=3\.[0-9]+/requires-python = '>=${{ matrix.python-version }}/" pyproject.toml
	grep -n "requires-python" pyproject.toml

	- name: Install package and test dependencies
	run: python -m pip install invoke .[test]

	- name: Run unit tests
	run: invoke unit
	- name: Run integration tests
	run: invoke integration

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