use string as noted in https://github.com/composite-primary-keys/comp… #37

	name: mariadb

	on: [push, pull_request]

	jobs:
	mariadb_test:
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	ruby: [2.7, "3.0", 3.1, 3.2]
	runs-on: ${{matrix.os}}
	services:
	mariadb:
	image: mariadb
	ports:
	- 3306:3306
	env:
	MYSQL_ROOT_PASSWORD: root
	MYSQL_USER: github
	MYSQL_PASSWORD: github
	MYSQL_DATABASE: composite_primary_keys_unittest
	options: >-
	--health-cmd "healthcheck.sh --connect --innodb_initialized"
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	env:
	BUNDLE_WITHOUT: "db2 oracle sqlserver sqlite postgresql trilogy"
	BUNDLE_JOBS: 4
	BUNDLE_PATH: vendor/bundle
	steps:
	- uses: actions/checkout@v4
	- uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{matrix.ruby}}
	bundler-cache: true
	- name: Setup database config
	run: cp test/connections/databases.ci.yml test/connections/databases.yml
	- name: Prepare databases
	run: bundle exec rake mysql:rebuild_database
	env:
	mariadb_ROOT_PASSWORD: root
	- name: mariadb test
	run: bundle exec rake mysql:test

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