Update actions/checkout action to v4 #54

	name: CI

	on: [push]

	jobs:
	build:

	runs-on: ${{ matrix.os }}

	strategy:
	matrix:
	os: [ubuntu-latest, windows-latest, macos-latest]
	rust: [stable, nightly]

	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Install rust toolchain
	uses: actions-rs/toolchain@v1
	with:
	toolchain: ${{ matrix.rust }}
	override: true
	- name: Build
	uses: actions-rs/cargo@v1
	with:
	command: build
	args: --verbose
	- name: Run tests
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --verbose

	clippy_check:

	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Ensure that clippy is installed
	uses: actions-rs/toolchain@v1
	with:
	toolchain: nightly
	override: true
	components: clippy
	- name: Run clippy
	uses: actions-rs/clippy-check@v1
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	args: --all-targets --all-features

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