Update actions/deploy-pages to v3 #346

	name: CI

	on: [push, pull_request]

	env:
	CARGO_TERM_COLOR: always

	jobs:
	check:
	runs-on: ubuntu-latest
	steps:
	- name: Install Rust
	uses: hecrj/setup-rust-action@v1
	with:
	rust-version: stable
	- uses: actions/checkout@v2
	- name: Check formatting
	run: cargo fmt -- --check
	- name: Clippy
	run: cargo clippy -- -D warnings -W clippy::pedantic
	- name: markdownlint
	uses: articulate/actions-markdownlint@v1

	test:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macOS-latest, windows-latest]
	steps:
	- name: Install Rust
	uses: hecrj/setup-rust-action@v1
	with:
	rust-version: stable
	- uses: actions/checkout@v2
	- name: Build
	run: cargo build --verbose
	- name: Run tests
	run: cargo test --verbose

	msrv:
	runs-on: ubuntu-latest
	steps:
	- name: Install Rust
	uses: hecrj/setup-rust-action@v1
	with:
	rust-version: 1.69
	- uses: actions/checkout@v2
	- name: Build
	run: cargo build --verbose
	- name: Run tests
	run: cargo test --verbose

	coverage:
	runs-on: ubuntu-latest
	steps:
	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: nightly
	override: true
	components: llvm-tools-preview
	- uses: actions/checkout@v2
	- name: Build and run
	uses: Swatinem/fucov@v1
	- name: Update coverage to Codecov
	uses: codecov/codecov-action@v1
	with:
	directory: coverage

Provide feedback