just define specific ones for each version #4

	name: RSpec Test Matrix
	on:
	push:
	pull_request:

	jobs:
	test:
	runs-on: ubuntu-latest
	services:
	postgresql:
	image: postgres
	env:
	POSTGRES_DB: test_active_record_union
	POSTGRES_USER: active_record_union
	POSTGRES_PASSWORD: active_record_union

	mysql2:
	image: mysql:8.0
	env:
	MYSQL_ROOT_HOST: "%"
	MYSQL_DATABASE: test_active_record_union
	MYSQL_USER: active_record_union
	MYSQL_PASSWORD: active_record_union
	MYSQL_ROOT_PASSWORD: active_record_union
	strategy:
	fail-fast: false
	matrix:
	# rails: ["5.2", "6.0", "6.1", "7.0", "7.1", "7.2", "8.0"]
	# ruby: ["2.5", "2.6", "3.0", "3.1", "3.2", "3.3"]
	# just define specific versions for each rails version
	include:
	- ruby: 2.5
	rails: 5.2
	- ruby: 2.6
	rails: 6.0
	- ruby: 3.0
	rails: 6.1
	- ruby: 3.1
	rails: 7.0
	- ruby: 3.2
	rails: 7.1
	- ruby: 3.2
	rails: 7.2
	- ruby: 3.3
	rails: 8.0

	env:
	BUNDLE_GEMFILE: "rails_${{ matrix.rails }}.gemfile"
	steps:
	- uses: actions/checkout@v4

	- uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	bundler-cache: true # install gems and cache

	- run: bundle install
	- run: bundle exec rspec

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