cargo: Set msrv to 1.66 #300

	on:
	push:
	branches: [main]
	pull_request:

	name: CI

	jobs:
	check:
	name: Check
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	override: true
	- uses: actions-rs/cargo@v1
	with:
	command: check

	test:
	name: Test Suite
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	- name: Install dependencies
	run: \|
	sudo apt-get install gnome-keyring dbus dbus-x11 -y
	gnome-keyring-daemon -d
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	override: true
	- name: Build and test
	run: \|
	dbus-run-session -- cargo test --no-default-features --features async-std --features native_crypto
	- name: Build and test (OpenSSL)
	run: \|
	dbus-run-session -- cargo test --no-default-features --features async-std --features openssl_crypto

	fmt:
	name: Rustfmt
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: nightly
	override: true
	- run: rustup component add rustfmt
	- uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all -- --check

	clippy:
	name: Clippy
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	override: true
	- run: rustup component add clippy
	- uses: actions-rs/cargo@v1
	with:
	command: clippy
	args: -- -D warnings

Provide feedback