Update Build Matrix and Add Rails 8 Support #34

	name: CI
	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	ruby: ["3.2", "3.3"]
	gemfile:
	- activemodel-7.1
	- activemodel-7.2
	# - activemodel-main
	include:
	- { ruby: "2.3", gemfile: "activemodel-3.2" }
	- { ruby: "2.4", gemfile: "activemodel-4.2" }
	- { ruby: "2.5", gemfile: "activemodel-5.2" }
	- { ruby: "2.7", gemfile: "activemodel-6.0" }
	- { ruby: "3.0", gemfile: "activemodel-6.1" }
	- { ruby: "3.1", gemfile: "activemodel-7.0" }

	env:
	BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
	steps:
	# https://github.com/marketplace/actions/checkout
	- uses: actions/checkout@v4
	# https://github.com/marketplace/actions/setup-ruby-jruby-and-truffleruby
	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	bundler-cache: true # runs `bundle install` and caches gems automatically
	- name: Run tests
	run: bundle exec rake

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