Bump actions/checkout from 3 to 4 #280

	name: Test Code

	on:
	pull_request:
	branches:
	- main
	push:
	branches:
	- main

	jobs:
	test-code:
	runs-on: ubuntu-20.04
	defaults:
	run:
	working-directory: ./utils

	steps:
	- name: Checkout Code
	uses: actions/checkout@v4

	# Steps taken from https://github.com/actions/cache/blob/master/examples.md#rust---cargo
	- name: Cache cargo registry
	uses: actions/cache@v3
	with:
	path: \|
	~/.cargo/registry
	~/.cargo/git
	target
	key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

	- name: Install toolchain
	uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	components: rustfmt, clippy
	target: wasm32-unknown-unknown
	override: true
	default: true

	# Enable this for clippy linting.
	# - name: Check and Lint Code
	# run: cargo +nightly-2022-06-30 clippy -- -D warnings

	- name: Check Code
	run: cargo check

	- name: Test Code
	run: cargo test

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