feat: 로컬 데이터베이스 mysql 전환을 위한 컨테이너 compose 추가

docker/docker-compose.yaml

@@ -0,0 +1,14 @@
+services:
+  mysql-local:
+    image: mysql:8.4
+    container_name: mysql-local
+    restart: always
+    ports:
+      - "23306:3306"
+    environment:
+      MYSQL_ROOT_PASSWORD: init
+      MYSQL_DATABASE: roomescape_local
+      TZ: Asia/Seoul
+    command:
+      - --character-set-server=utf8mb4
+      - --collation-server=utf8mb4_unicode_ci