build(deps): bump actions/checkout from 2 to 4 #468

	on: [push, pull_request]
	name: lint
	jobs:
	fmt:
	name: cargo fmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Setup Rust toolchain
	run: rustup show && rustup update && rustup component add rustfmt
	- name: cargo fmt
	run: cargo fmt --all -- --check

	clippy:
	name: cargo clippy
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Setup Rust toolchain
	run: rustup show && rustup update && rustup component add clippy
	- name: cargo clippy
	run: cargo clippy --workspace --all-features --tests -- -D warnings

	readme:
	name: cargo readme
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@stable
	- run: cargo +stable install cargo-readme
	- run: cargo readme > README.md && git diff --exit-code

	check-spdx-headers:
	name: spdx check
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v4
	- uses: enarx/spdx@master
	with:
	licenses: Apache-2.0

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