Update Node version to 20 #47

	name: New Contributor Action
	on:
	pull_request_target:
	types: [closed]

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	check-new-contributor:
	if: ${{ github.event.pull_request.merged }}
	runs-on: ubuntu-latest
	permissions:
	pull-requests: write
	steps:
	- name: Check new contributor
	uses: actions/github-script@v7
	with:
	script: \|
	const prAuthor = context.payload.pull_request.user.login;
	const prMerger = context.payload.pull_request.merged_by.login;
	const repoOwner = context.repo.owner;
	const repoName = context.repo.repo;
	const currentPR = context.payload.pull_request.number;
	const previouslyMergedPRsByAuthor = await github.paginate(
	github.rest.pulls.list,
	{
	owner: repoOwner,
	repo: repoName,
	state: 'closed',
	per_page: 100
	},
	(response) => response.data.filter(pr => pr.merged_at != null && pr.user.login === prAuthor && pr.number !== currentPR)
	);
	if (previouslyMergedPRsByAuthor.length == 0) {
	const welcomeMessage = `Welcome, @${prAuthor}! 🎉 Thank you for your contribution to the MarkBind project!\n\n@${prMerger}, please remember to add @${prAuthor} as an official contributor to our repository.\n\nSee the full list of contributors [here](https://markbind.org/about.html). ✨`;
	github.rest.issues.createComment({
	issue_number: currentPR,
	owner: repoOwner,
	repo: repoName,
	body: welcomeMessage
	});
	}

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