Removes `files` from `package.json`. #108

	name: CI

	on:
	push:
	branches:
	- main

	# Run CI for the `ci` branch. This branch isn't special in any way, it just
	# does not enforce linear history, so edits to the CI workflow can be tested
	# there where commits can still be amended before they are immutably pushed
	# to main.
	- ci

	pull_request:
	branches:
	- main

	jobs:
	test:
	runs-on: ubuntu-20.04

	steps:

	# Checkout the repository.
	- uses: actions/checkout@v3

	# Install Node.js.
	- uses: actions/setup-node@v4
	with:
	node-version-file: '.nvmrc'

	# Install dependencies.
	- name: Install
	run: npm ci

	# Run tests.
	- name: Test
	run: npm test

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