Added solution for 2023/Day 21 #62

	name: Code linting

	on:
	push:
	paths:
	- '**.py'
	pull_request:
	paths:
	- '**.py'
	workflow_dispatch:

	permissions:
	contents: read

	jobs:
	linter:
	name: Lint code
	runs-on: ubuntu-latest

	steps:
	- name: Clone repository
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.11
	cache: pip
	cache-dependency-path: '.github/flake8.requirements.txt'

	- name: Install dependencies
	run: pip install -r ".github/flake8.requirements.txt"

	- name: Lint with flake8
	run: flake8 --show-source --statistics

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