ci: add/update workflow for autosquash on PRs #121

	# This workflow will install Python dependencies, run tests and lint with a single version of Python
	# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python

	name: pytest

	on:
	push:
	branches: main
	pull_request:
	branches: [ ]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.9
	uses: actions/setup-python@v3
	with:
	python-version: "3.9"
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python3 -m pip install pytest
	python3 -m pip install -e .
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Install Pillow
	run: pip install Pillow
	- name: Run pytest
	run: \|
	pytest

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