Lines with a 180 degree angle between them should be considered parallel (`turf-boolean-parallel`) #499

	name: Turf.js CI

	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	permissions:
	contents: read

	jobs:
	build:
	runs-on: ubuntu-latest

	strategy:
	matrix:
	node-version: [16.x, 18.x, 20.x]

	steps:
	- uses: actions/checkout@v2
	- name: Use Node.js ${{ matrix.node-version }}
	uses: actions/setup-node@v1
	with:
	node-version: ${{ matrix.node-version }}

	# figure out the yarn cache directory
	- name: Get yarn cache directory path
	id: yarn-cache-dir-path
	run: echo "::set-output name=dir::$(yarn cache dir)"

	# cache the yarn data to speed up builds
	- uses: actions/cache@v2
	id: yarn-cache
	with:
	path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
	key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-yarn-

	- run: yarn --frozen-lockfile
	- run: git diff --exit-code
	- run: yarn test

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