Update to crystal-db ~> 0.13 #90

	name: CI

	on:
	push:
	pull_request:
	branches: [master]
	schedule:
	- cron: '0 6 * * 1' # Every monday 6 AM

	jobs:
	test:
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	crystal: [1.0.0, latest, nightly]
	mysql_docker_image: ["mysql:5.6", "mysql:5.7"]
	runs-on: ${{ matrix.os }}
	steps:
	- name: Install Crystal
	uses: crystal-lang/install-crystal@v1
	with:
	crystal: ${{ matrix.crystal }}

	- name: Shutdown Ubuntu MySQL (SUDO)
	run: sudo service mysql stop # Shutdown the Default MySQL, "sudo" is necessary, please not remove it

	- name: Setup MySQL
	run: \|
	docker run -e MYSQL_ALLOW_EMPTY_PASSWORD=yes -p 3306:3306 -d ${{ matrix.mysql_docker_image }}
	docker ps -a # log docker image
	while ! echo exit \| nc localhost 3306; do sleep 5; done # wait mysql to start accepting connections

	- name: Download source
	uses: actions/checkout@v2

	- name: Install shards
	run: shards install

	- name: Run specs
	run: crystal spec

	- name: Check formatting
	run: crystal tool format; git diff --exit-code
	if: matrix.crystal == 'latest' && matrix.os == 'ubuntu-latest'

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