chore(deps): bump actions/download-artifact from 3 to 4 #5816

	name: Unit Tests

	on:
	push:
	pull_request:
	merge_group:

	# Ensure that only a single job or workflow using the same concurrency group will run at a time.
	# see https://docs.github.com/en/actions/using-jobs/using-concurrency#example-only-cancel-in-progress-jobs-or-runs-for-the-current-workflow
	concurrency:
	group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.ref }}
	# only needs to test the group's latest commit
	cancel-in-progress: true

	jobs:
	rust-test:
	strategy:
	matrix:
	# Supported GitHub-hosted runners and hardware resources
	# see https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources
	os: [ubuntu-22.04]
	fail-fast: false
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v4

	- name: Cache of Cargo
	id: cargo-test-cache
	uses: actions/cache@v3
	with:
	path: \|
	~/.cargo/bin/
	~/.cargo/registry/index/
	~/.cargo/registry/cache/
	~/.cargo/git/db/
	target/
	key: ${{ matrix.os }}-${{ runner.os }}-${{ runner.arch }}-cargo-test-${{ hashFiles('**/Cargo.lock') }}

	- uses: taiki-e/install-action@nextest
	- name: Run Rust unit-test
	run: \|
	make test-in-separate-processes
	du -hd1 target/debug/
	echo "reduce the cargo cache size"
	rm -rf target/debug/examples
	rm -rf target/debug/incremental
	du -hd1 target/debug/
	ls -l ~/.cargo/bin/
	rm -f ~/.cargo/bin/cargo-nextest

	other-unit-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-node@v4
	- name: Run crosschain-test
	run: make crosschain-test

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