Misc improvements #117

	name: CI
	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]
	jobs:
	Tests:
	runs-on: ubuntu-latest
	env:
	DATABASE_URL: postgres://postgres:postgres@localhost:5432/battlesnake-test
	KEMAL_ENV: test
	LOG_LEVEL: WARN

	services:
	postgres:
	image: postgres:14
	env:
	POSTGRES_PASSWORD: postgres
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	ports:
	- 5432:5432
	redis:
	image: redis
	ports:
	- 6379:6379

	steps:
	- name: Download source
	uses: actions/checkout@v3

	- name: Install Crystal
	uses: crystal-lang/install-crystal@v1

	- name: Cache shards
	uses: actions/cache@v2
	with:
	path: ~/.cache/shards
	key: shards-${{ hashFiles('shard.yml') }}
	restore-keys: ${{ runner.os }}-shards-

	- name: Install shards
	run: shards update

	- name: Setup DB
	run: make sam db:setup

	- name: Run tests
	run: make sam test

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