nodeのバージョンを20系に固定 & スポンサー追加 #73

	name: Lint and Format

	on:
	pull_request:
	types: [opened, synchronize]

	jobs:
	lint-and-format:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Set up Node.js
	uses: actions/setup-node@v3
	with:
	node-version: '20'

	- name: Install dependencies
	run: npm install

	- name: Run ESLint
	run: \|
	npm run lint
	git add .
	if ! git diff --exit-code; then
	echo "ESLint changes detected. Please commit the changes."
	exit 1
	fi

	- name: Run Prettier
	run: \|
	npm run format
	git add .
	if ! git diff --exit-code; then
	echo "Prettier changes detected. Please commit the changes."
	exit 1
	fi

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