Add weekly-slow 21 #53

	name: Linter
	on: [push]
	jobs:
	flake8-lint:
	runs-on: ubuntu-latest
	name: Lint test with flake8
	steps:
	- name: Check out source repository
	uses: actions/checkout@v2
	- name: Set up Python environment
	uses: actions/setup-python@v1
	with:
	python-version: "3.9"
	- name: Install flake8
	run: python -m pip install flake8
	- name: Run flake8
	run: \|
	python -m flake8 HujiBot/*.py
	python -m flake8 Rezabot/*.py
	python -m flake8 webcite.py
	python -m flake8 categorize.py

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