`feat`: add github workflows for building and checking fmt.. #4

	name: Check lock file, fmt, clippy

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	on:
	pull_request:
	push:
	branches:
	- 'main'
	workflow_dispatch:

	env:
	CARGO_TERM_COLOR: always

	jobs:
	test:
	runs-on: ubuntu-22.04

	steps:
	- name: checkout repo
	uses: actions/checkout@v4

	- name: set build cache
	uses: actions/cache@v4
	with:
	path: \|
	~/.cargo/bin/
	~/.cargo/registry/index/
	~/.cargo/registry/cache/
	~/.cargo/git/db/
	yellowstone-vixen/target/
	key: cargo-${{ hashFiles('**/Cargo.lock') }}-0001

	# Install Rust Nightly
	- name: Install Rust Nightly
	uses: actions-rs/toolchain@v1
	with:
	toolchain: nightly
	override: true
	components: rustfmt, clippy

	# Cargo.lock
	- name: Check lock file
	run: \|
	cargo tree
	git checkout Cargo.lock
	cargo tree --frozen

	# fmt
	- name: Check fmt
	run: cargo +nightly fmt --all -- --check

	# clippy
	- name: Check clippy
	run: cargo +nightly clippy --all-targets --tests -- -Dwarnings

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