Better project setup, now with a structure UV likes #237

	name: AOC 2019 test suite
	on:
	push:

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: 3.9
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r 2019/requirements.txt
	- name: Run Pytest
	run: pytest 2019

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