trivial: fix flake8 warnings #84

	---
	name: 'EBBR CI Build'

	# yamllint disable-line rule:truthy
	on:
	push:
	branches: '**'
	tags: 'v*'

	pull_request:
	branches: main

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	# checkout@v3 doesn't preserve annotations when fetching the tag
	# Forcing the tags to be fetched fixes it so the version is correct
	- name: 'Identify Version'
	run: \|
	git fetch --force --tags
	echo "EBBR_VERSION=$(git describe)" >> $GITHUB_ENV

	- name: 'Install Debian required packages'
	run: \|
	sudo apt update
	sudo apt install python3-pip latexmk libalgorithm-diff-perl texlive \
	texlive-latex-extra texlive-humanities

	- name: 'Install Python required packages'
	run: \|
	pip3 install --user mako
	pip3 install --user typing
	pip3 install --user Sphinx

	- name: 'Check'
	run: make check

	- name: 'Build PDF'
	run: \|
	make latexpdf
	cp build/latex/ebbr.pdf build/ebbr-${{ env.EBBR_VERSION }}.pdf

	- name: 'Build HTML'
	run: make html

	- name: 'Build Single HTML'
	run: make singlehtml

	- name: 'Upload artifacts'
	uses: actions/upload-artifact@v3
	with:
	name: ebbr-${{ env.EBBR_VERSION }}
	path: \|
	build/ebbr-*.pdf
	build/html/
	build/singlehtml/

	- name: 'Deploy to Github Pages'
	uses: peaceiris/actions-gh-pages@v3
	if: ${{ github.ref == 'refs/heads/main' }}
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./build/singlehtml

	- name: 'Publish Release'
	uses: softprops/action-gh-release@v1
	if: endsWith(github.ref, env.EBBR_VERSION)
	with:
	files: build/ebbr-*.pdf
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Provide feedback