Added missing package dependency #370

	# This is a basic workflow to help you get started with Actions

	name: CI

	# Controls when the action will run. Triggers the workflow on push or pull request
	# events but only for the master branch
	on:
	push:
	branches: [ dev ]
	pull_request:
	branches: [ dev ]

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest
	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v2
	- name: Use Node.js v14
	uses: actions/setup-node@v2
	with:
	node-version: '14.x'
	- name: Cache Node.js modules
	uses: actions/cache@v1
	with:
	path: ~/.npm # npm cache files are stored in `~/.npm` on Linux/macOS
	key: ${{ runner.OS }}-node-${{ hashFiles('**/package-lock.json') }}
	restore-keys: \|
	${{ runner.OS }}-node-
	${{ runner.OS }}-
	# Runs a set of commands using the runners shell
	- name: Build
	run: npm ci
	- name: Test
	run: npm test -- --coverage
	- name: Coveralls
	uses: coverallsapp/github-action@master
	with:
	github-token: ${{ secrets.GITHUB_TOKEN }}

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