[Snyk] Security upgrade webpack-dev-server from 3.11.3 to 4.0.0 #162

	name: Pull request workflow

	on:
	pull_request:

	jobs:
	pr:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v1
	- uses: actions/setup-node@v1
	with:
	node-version: '12'
	- name: Get yarn cache directory path
	id: yarn-cache-dir-path
	run: echo "::set-output name=dir::$(yarn cache dir)"
	- uses: actions/cache@v1
	with:
	path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
	key: ${{ runner.os }}-node-modules-${{ hashFiles('yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-node-modules-
	${{ runner.os }}-

	- name: Install dependencies
	if: steps.yarn-cache.outputs.cache-hit != 'true'
	run: yarn

	- name: Run tsc
	run: yarn tsc

	- name: Run unit tests
	run: yarn test

	- name: Check linter
	run: yarn lint

	- name: Check markdown linter
	run: yarn workspace docs lint-md

	- name: Build vuepress
	run: yarn build

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