Ensure project uses Crystal 1.13 #60

	name: QA

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: "*"

	jobs:
	qa:
	runs-on: ubuntu-latest
	container:
	image: crystallang/crystal:1.12.0
	steps:
	- uses: actions/checkout@v1
	- name: Install required packages
	run: \|
	apt-get update
	apt-get -yqq install cmake build-essential
	- name: Install shards
	run: \|
	git config --global --add safe.directory /__w/realworld/realworld
	git config --global --add safe.directory /__w/realworld/realworld/shard_overrides/marten
	git submodule init
	git submodule update --remote --recursive
	shards install --ignore-crystal-version
	- name: Run QA checks
	run: make qa_crystal

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