fix pyyaml version #842

	name: Tests

	on:
	push:

	jobs:
	run-tests:
	name: Brownie tests
	runs-on: ubuntu-20.04
	steps:
	- name: Checkout Code
	uses: actions/checkout@v3


	- name: Install poetry
	run: \|
	curl -sSL https://install.python-poetry.org \| python3 -
	echo "$HOME/.local/bin" >> $GITHUB_PATH
	env:
	POETRY_VERSION: "1.2.2"

	- name: Set up Python 3.10
	uses: actions/setup-python@v4
	with:
	python-version: "3.10.8"

	- name: Setup node.js version
	uses: actions/setup-node@v3
	with:
	node-version: 16.x

	- name: Install pyyaml
	run: poetry run pip install "cython<3.0" pyyaml==5.4.1 --no-build-isolation

	- name: Install poetry requirements
	run: poetry install

	- name: Install ganache
	run: yarn install --frozen-lockfile

	- name: Import network config to connect brownie with local Ganache
	run: poetry run brownie networks import network-config.yaml True

	- name: Run tests
	run: >
	poetry run
	brownie test -s --network mainnet-fork
	env:
	WEB3_INFURA_PROJECT_ID: ${{ secrets.WEB3_INFURA_PROJECT_ID }}
	ETHERSCAN_TOKEN: ${{ secrets.ETHERSCAN_TOKEN }}

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