refactor: docker-compose.dev.yml에 mysql 컨테이너 추가 (#690)

* refactor: docker-compose.dev.yml에 mysql 컨테이너 추가

* fix: 코드래빗 반영(MYSQL_ALLOW_EMPTY_PASSWORD: 'yes' 추가)

Author: Hexeong

docker-compose.dev.yml

@@ -13,3 +13,15 @@ services:
     volumes:
       - ./logs:/var/log/spring
     restart: always
+
+  mysql:
+    image: mysql:8.0
+    container_name: solid-connection-dev-mysql
+    environment:
+      MYSQL_DATABASE: solid_connection
+      MYSQL_ALLOW_EMPTY_PASSWORD: 'yes'
+    ports:
+      - "3306:3306"
+    volumes:
+      - ./mysql_data_dev:/var/lib/mysql
+    restart: always