Switch from the multiplexer to axum-tonic and bump necessary library versions #326

	name: Cargo Test

	on: [push, pull_request]

	jobs:
	test:
	name: Test
	env:
	PROJECT_NAME_UNDERSCORE: concord
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: nightly
	override: true
	- name: Cargo cache
	uses: actions/cache@v4
	with:
	path: \|
	~/.cargo/registry
	~/.cargo/git
	target
	key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
	- name: Install rustfmt
	run: rustup component add rustfmt
	- name: Install protobuf
	run: sudo apt-get install -y protobuf-compiler
	- name: Run tests
	run: cargo test

Provide feedback