update ruby to 2.6.0 #226

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.
	# This workflow will download a prebuilt Ruby version, install dependencies and run tests with Rake
	# For more information see: https://github.com/marketplace/actions/setup-ruby-jruby-and-truffleruby
	name: Run test and rubocop

	on:
	pull_request:
	branches: [production]

	jobs:
	test:
	runs-on: ubuntu-20.04
	services:
	db:
	image: postgres:11
	env:
	POSTGRES_PASSWORD: postgres
	ports: ['5432:5432']
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	steps:
	- uses: actions/checkout@v2
	- name: Setup Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: 2.5.3
	- run: \|
	bundle install --without production development
	- env:
	RAILS_ENV: test
	PGHOST: localhost
	PGPASSWORD: postgres
	run: \|
	cp config/database.yml.travis config/database.yml
	cp .env.default .env
	bundle exec rake db:setup
	sudo apt-get install texlive-latex-base
	bundle exec rake test
	rubocop:
	name: rubocop
	runs-on: ubuntu-20.04
	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	- name: Setup Ruby and install gems
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: 2.5.3
	- run: \|
	bundle install --without production development
	- name: Run rubocop
	run: \|
	bundle exec rubocop -D -f simple

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