Update CI, add cargo fmt #168

	name: Rust

	env:
	MSRV: "1.70"

	on: [push, pull_request]

	jobs:
	check:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@beta
	with:
	components: clippy, rustfmt
	- uses: Swatinem/rust-cache@v2
	- name: cargo fmt
	run: cargo fmt --all --check
	- name: clippy
	run: cargo clippy --all-targets --all-features -- -D warnings

	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@stable
	- uses: Swatinem/rust-cache@v2
	- name: Check rustc and cargo version
	run: rustc -V && cargo -V
	- name: Build
	run: cargo build --all-features --all-targets --verbose
	- name: Run tests
	run: cargo test --all-features --all-targets --verbose
	- name: Build (no default features)
	run: cargo build --no-default-features --all-targets --verbose
	- name: Run tests (no default features)
	run: cargo test --no-default-features --all-targets --verbose

	miri:
	name: "Miri"
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Miri
	run: \|
	rustup toolchain install nightly --component miri
	rustup override set nightly
	cargo miri setup
	- name: Test with Miri tests with "from_buffer" in name
	run: cargo miri test from_buffer

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