Bump actions/checkout from 2 to 4 #1

	# Copyright 2020 Google LLC
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	name: Deploy Preview

	on: pull_request

	jobs:
	preview:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Deploy to Firebase Hosting preview channel
	id: firebase_hosting_preview
	uses: ./
	with:
	repoToken: "${{ secrets.GITHUB_TOKEN }}"
	firebaseServiceAccount: "${{ secrets.FIREBASE_SERVICE_ACCOUNT }}"
	expires: 14d
	projectId: action-hosting-deploy-demo
	entryPoint: "./demo"
	- name: Check outputs
	run: \|
	echo urls ${{steps.firebase_hosting_preview.outputs.url}}
	echo expire_time ${{steps.firebase_hosting_preview.outputs.expire_time}}
	echo details_url ${{steps.firebase_hosting_preview.outputs.details_url}}

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