Stop testing Ruby 2.4 #26

	---
	name: CI
	on: [push, pull_request]

	jobs:
	tests:
	name: Ruby ${{ matrix.ruby }}, ${{ matrix.gemfile }}, DB ${{ matrix.db }}
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	ruby:
	- '2.5'
	- '2.6'
	- '2.7'
	- '3.0'
	- '3.1'
	gemfile:
	- gemfiles/rails_6_0.gemfile
	- gemfiles/rails_6_1.gemfile
	- gemfiles/rails_7_0.gemfile
	db:
	- sqlite
	- mysql
	- postgresql
	exclude:
	- ruby: 2.5
	gemfile: gemfiles/rails_7_0.gemfile
	- ruby: 2.6
	gemfile: gemfiles/rails_7_0.gemfile
	- ruby: 3.1
	gemfile: gemfiles/rails_6_0.gemfile
	os:
	- ubuntu-latest
	services:
	mysql:
	image: mysql:5.7
	env:
	MYSQL_ALLOW_EMPTY_PASSWORD: yes
	ports:
	- 3306:3306
	options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3

	postgres:
	# Docker Hub image
	image: postgres
	# Provide the password for postgres
	env:
	POSTGRES_USER: postgres
	POSTGRES_HOST_AUTH_METHOD: trust
	ports:
	- 5432:5432
	# Set health checks to wait until postgres has started
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	env:
	BUNDLE_GEMFILE: ${{ matrix.gemfile }}
	DB: ${{ matrix.db }}
	steps:
	- uses: actions/checkout@v4
	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	bundler-cache: true
	- name: "Create MySQL database"
	if: ${{ env.DB == 'mysql' }}
	run: \|
	mysql -h 127.0.0.1 -u root -e 'create database ranked_model_test;'
	- name: "Create PostgreSQL database"
	if: ${{ env.DB == 'postgresql' }}
	run: \|
	psql -c 'create database ranked_model_test;' -h localhost -U postgres
	- name: Run tests
	run: bundle exec rake

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