ci: add MariaDB (#2)

MariaDB is diverging from MySQL so lets just test it to be sure.

Author: grooverdan

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
       matrix:
         ruby: [3.2]
         rails: ["7.0", "7.1"]
-        db: [sqlite, postgres, mysql]
+        db: [sqlite, postgres, mysql, mariadb]
 
     services:
       postgres:
@@ -41,6 +41,18 @@ jobs:
           --health-timeout=10s
           --health-retries=5
 
+      mariadb:
+        image: mariadb:latest
+        ports: [3307:3306]
+        env:
+          MARIADB_ROOT_PASSWORD: root
+          MARIADB_DATABASE: safe_migrations_test
+        options: >-
+          --health-cmd="healthcheck.sh --connect"
+          --health-interval=5s
+          --health-timeout=10s
+          --health-retries=5
+
     env:
       RAILS_ENV: test
       BUNDLE_JOBS: 4
@@ -79,6 +91,9 @@ jobs:
             mysql)
               export DATABASE_URL="mysql2://root:[email protected]:3306/safe_migrations_test"
               ;;
+            mariadb)
+              export DATABASE_URL="mysql2://root:[email protected]:3307/safe_migrations_test"
+              ;;
           esac
 
           echo "DATABASE_URL=$DATABASE_URL" >> $GITHUB_ENV