add configuration files for flake8 and pre-commit, and update mypy se… #2

	name: pre-commit

	on:
	pull_request:
	branches: [ main ]

	jobs:
	pre-commit:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.x'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install pre-commit

	- name: Run pre-commit hooks
	run: pre-commit run --all-files

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