Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows #5679

	# Run the system integration tests

	name: Integration
	on: [ push, pull_request ]

	jobs:
	main:
	name: Integration
	runs-on: ubuntu-latest
	timeout-minutes: 30
	steps:

	- uses: actions/checkout@v2
	with:
	path: agora
	# For Codecov
	fetch-depth: 2
	submodules: recursive

	- name: Prepare compiler
	uses: dlang-community/setup-dlang@v1
	with:
	compiler: ldc-latest

	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install libsodium-dev libsqlite3-dev clang

	- name: Checkout faucet
	uses: actions/checkout@v2
	with:
	path: faucet
	repository: bosagora/faucet
	submodules: true

	- name: Update Faucet submodule to point to our clone
	run: \|
	cd ${{ github.workspace }}/faucet/
	git -C submodules/agora fetch origin ${{ github.sha }}:agora-ci-integration-test-donotuse
	git -C submodules/agora checkout agora-ci-integration-test-donotuse
	git -C submodules/agora submodule update --recursive --init
	# For debug output
	git submodule

	- name: Build Faucet
	run: \|
	cd ${{ github.workspace }}/faucet/
	docker build -t bosagora/faucet ${{ github.workspace }}/faucet/

	- name: Test
	run: \|
	cd ${{ github.workspace }}/agora/
	./ci/system_integration_test.d

	- name: Change permission on lst files
	run: \|
	# Work around druntime setting the permissions to 600..
	# Need to iterate on the directory to avoid 'list arguments too long'
	cd ${{ github.workspace }}/agora/
	for file in $(find tests/system/node/ -name '*.lst'); do
	sudo chmod 644 $file
	done

	- name: 'Upload code coverage'
	uses: codecov/codecov-action@v1
	with:
	flags: integration

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