fix: update workflow branch name, update tests/linter #2

	name: CI

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	jobs:
	build:
	runs-on: ubuntu-latest
	services:
	sapphire-localnet-ci:
	image: ghcr.io/oasisprotocol/sapphire-localnet
	ports:
	- 8544:8544
	- 8545:8545
	- 8546:8546
	env:
	OASIS_DOCKER_START_EXPLORER: no
	options: >-
	--rm
	--health-cmd="test -f /CONTAINER_READY"
	--health-start-period=90s
	steps:
	- name: Check out repository
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.12'

	- name: Install dependencies
	run: \|
	pip3 install -r requirements.txt

	- name: Lint code
	run: \|
	flake8 src/
	flake8 main.py

	- name: Run tests
	run: \|
	pytest tests/

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