update ci to use node 20 #94


	name: elk-live

	on:
	pull_request:
	branches:
	- master
	push:
	branches:
	- master

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	java-version: [ 11 ]
	node-version: [ 20.x ]

	steps:
	# Checkout the repository of both elk and elkjs, place them next to each other.
	- uses: actions/checkout@v2
	with:
	path: elk-live
	- uses: actions/checkout@v2
	with:
	repository: eclipse/elk-models
	path: elk-live/elk-models
	# Prepare and use caches for both gradle and npm.
	- name: Cache gradle packages
	uses: actions/cache@v1
	with:
	path: ~/.gradle/caches
	key: ${{ runner.os }}-gradle-${{ hashFiles('*/.gradle') }}
	restore-keys: ${{ runner.os }}-gradle
	- name: Cache npm
	uses: actions/cache@v1
	with:
	path: ~/.npm
	key: ${{ runner.os }}-node-${{ hashFiles('/package.json', '/yarn.lock') }}
	restore-keys: ${{ runner.os }}-node-
	- name: Set up JDK ${{ matrix.java-version }}
	uses: actions/setup-java@v1
	with:
	java-version: ${{ matrix.java-version }}
	- name: Grant execute permission for gradlew
	run: chmod +x $GITHUB_WORKSPACE/elk-live/server/gradlew
	- name: Use Node.js ${{ matrix.node-version }}
	uses: actions/setup-node@v1
	with:
	node-version: ${{ matrix.node-version }}
	# Build client-side code
	- name: Build client-side
	run: \|
	npm install -g yarn
	yarn install
	yarn build
	working-directory: /home/runner/work/elk-live/elk-live/elk-live/client/
	env:
	CI: true
	- name: Build server-side
	run: \|
	./gradlew jettyRun --args='--root ../../ --mode CHECK'
	working-directory: /home/runner/work/elk-live/elk-live/elk-live/server/

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