Update dependency web3 to v4 #37

	name: Lint

	on: [push, pull_request]

	jobs:
	run-linters:
	name: Run linters
	runs-on: ubuntu-latest

	steps:
	- name: Check out Git repository
	uses: actions/checkout@v3

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.8

	- name: Install Python dependencies
	run: pip install black flake8

	- name: Run linters
	uses: wearerequired/lint-action@v2
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	black: true
	auto_fix: true

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