chore[infra]: 설정변경

Author: DooHyoJeong

backend/src/main/resources/application-prod.yml

@@ -5,7 +5,7 @@ spring:
     username: ${PROD_DATASOURCE_USERNAME}
     password: ${PROD_DATASOURCE_PASSWORD}
   datasource-meta:
-    jdbc-url: jdbc:mysql://localhost:3306/meta_db?useSSL=false&useUnicode=true&serverTimezone=Asia/Seoul&allowPublicKeyRetrieval=true&createDatabaseIfNotExist=true
+    jdbc-url: jdbc:mysql://mysql:3306/meta_db?useSSL=false&useUnicode=true&serverTimezone=Asia/Seoul&allowPublicKeyRetrieval=true&createDatabaseIfNotExist=true
     driver-class-name: ${PROD_DATASOURCE_DRIVER}
     username: ${PROD_DATASOURCE_USERNAME}
     password: ${PROD_DATASOURCE_PASSWORD}