fix flake8 violations #15

	name: CI

	on:
	- push
	- pull_request
	- workflow_dispatch

	jobs:
	main:
	strategy:
	matrix:
	include:
	- python: 3.8
	- python: 3.9
	- python: '3.10'
	- python: '3.11'
	- python: '3.12-dev'
	runs-on: ubuntu-latest
	name: Python ${{ matrix.python }}
	steps:
	- uses: actions/checkout@v4
	- name: set up Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python }}
	- name: apt update
	run:
	sudo apt-get update
	- name: install APT dependencies
	run:
	sudo apt-get install fonts-roboto
	- name: update PIP
	run:
	python -m pip install --upgrade pip
	- name: install wheel
	run:
	python -m pip install --upgrade wheel
	- name: install package
	run: \|
	python -m pip install .[dev,mypy]
	- name: run tests
	run:
	python -m unittest discover --verbose --start-directory tests
	- name: run flake8
	run:
	python -m flake8 .
	- name: run black
	run:
	black --check --diff .
	- name: run mypy
	run:
	mypy brother_ql_web/ tests/

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