adds testing for ruby 3 and rails 6.1 #193

	name: Ruby

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	jobs:
	build:
	runs-on: ubuntu-latest

	continue-on-error: true
	strategy:
	matrix:
	ruby: [3.0.7, 3.1.6]
	gemfile: [gemfiles/rails60.gemfile] # default Gemfile excluded until rack fix
	steps:
	- uses: actions/checkout@v1
	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	- name: Set up Code Climate
	run: \|
	curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
	chmod +x ./cc-test-reporter
	./cc-test-reporter before-build
	- name: Build and Test
	env:
	BUNDLE_GEMFILE: ${{ matrix.gemfile }}
	CC_TEST_REPORTER_ID: ${{ secrets.CC_TEST_REPORTER_ID }}
	RUBY_VERSION: ${{ matrix.ruby }}
	run: \|
	if [ $RUBY_VERSION == "2.5.x" ] ;
	then gem install bundler
	fi
	bundle install --jobs 4 --retry 3
	bundle exec rake
	if [ `basename $BUNDLE_GEMFILE` == "Gemfile" ] && [ $RUBY_VERSION == "2.7.x" ] && [ ! -z ${CC_TEST_REPORTER_ID} ] ;
	then ./cc-test-reporter after-build --exit-code $? ;
	fi

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