Add a `serve` subcommand that will start a gRPC server #192

	name: go test

	on:
	pull_request:
	branches:
	- main

	jobs:
	test:
	name: Testing
	runs-on: ubuntu-latest
	services:
	postgres:
	image: postgres
	ports:
	- "5432:5432"
	env:
	POSTGRES_PASSWORD: password
	POSTGRES_USER: nebula_test
	POSTGRES_DB: nebula_test
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	steps:
	- name: Checking out repository code
	uses: actions/checkout@v4

	- name: Setting up Golang
	uses: actions/setup-go@v4
	with:
	go-version: '1.23'

	- name: Running tests
	run: make test

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