Add MariaDB as development and test database (#5816)

dev/docker-compose.yml

@@ -70,6 +70,20 @@ services:
     profiles:
       - mysql
 
+  mariadb:
+    image: mariadb:10
+    ports:
+      - 4306:3306
+    environment:
+      MARIADB_USER: maria
+      MARIADB_PASSWORD: ${MARIADB_ROOT_PASSWORD}
+      MARIADB_DATABASE: vault_dev
+      MARIADB_RANDOM_ROOT_PASSWORD: "true"
+    volumes:
+      - mariadb_dev_data:/var/lib/mysql
+    profiles:
+      - mariadb
+
   idp:
     image: kenchan0130/simplesamlphp:1.19.8
     container_name: idp