Update to Python 3.13 #163

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Unittest Lower Bound

	on:
	push:
	branches: [ main ]
	pull_request:

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Conda config
	run: echo -e "channels:\n - conda-forge\n" > .condarc
	- uses: conda-incubator/setup-miniconda@v3
	with:
	python-version: '3.9'
	miniforge-version: latest
	condarc-file: .condarc
	environment-file: .ci_support/environment-old.yml
	- name: Test
	shell: bash -l {0}
	run: \|
	pip install versioneer[toml]==0.29
	pip install . --no-deps --no-build-isolation
	python -m unittest discover tests

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