fix joins because of changes in polars api #189

	name: ci-cd

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	ci:
	# Step 1. Set up operating system
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [ "3.7", "3.8", "3.9", "3.10" ]
	steps:
	# Step 2. Set up Python 3.9
	- uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	# Step 3. Check-out repository so we can access its contents
	- uses: actions/checkout@v2
	# Step 4. Install poetry
	- uses: snok/install-poetry@v1
	# Step 5. Install our pycounts package
	- name: Install package
	run: poetry install
	# Step 6. Run tests for pycounts
	- name: Test with pytest
	run: poetry run pytest tests/
	# Step 8. Build documentation
	- name: Build documentation
	run: poetry run make html --directory docs/

Provide feedback