Bringing back middleware mode. The following assumptions were made: #408

	---
	name: ci-casper-event-sidecar

	on:
	push:
	branches:
	- "dev"
	- "feat-*"
	- "release-*"
	- "rc-*"
	paths-ignore:
	- '**.md'

	pull_request:
	branches:
	- "dev"
	- "feat-*"
	- "release-*"
	paths-ignore:
	- '**.md'

	env:
	CARGO_TERM_COLOR: always

	jobs:
	build_and_test:
	strategy:
	matrix:
	os: [ubuntu-20.04, ubuntu-22.04]
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b #v3.0.2
	- uses: Swatinem/rust-cache@6720f05bc48b77f96918929a9019fb2203ff71f8
	with:
	shared-key: ${{ matrix.os }}

	- name: update toolchain
	run: rustup update

	- name: fmt
	run: cargo fmt -- --check

	- name: clippy
	run: cargo clippy --all-targets -- --deny warnings

	- name: audit
	# Hope to get to here:
	# run: cargo audit --deny warnings
	# RUSTSEC-2022-0090 I don't think we have much power over that, it's a transitive dependency of sqlx.
	# We need to keep an eye on the newest sqlx-core update and apply it ASAP.
	# RUSTSEC-2022-0093 - that is an issue that comes form casper-types, need to update that depenency as soon as a new release is made
	run: cargo audit --ignore RUSTSEC-2022-0090 --ignore RUSTSEC-2022-0093

	- name: test
	run: cargo test

	- name: install cargo packaging tools
	run: \|
	cargo install cargo-deb

	- name: deb
	run: cargo deb --package casper-event-sidecar

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