refactor: application.yml 코드 수정

Author: Muokok

src/main/resources/application.yml

@@ -51,7 +51,7 @@ oauth2:
 
 # 알람
 fcm:
-  service-account-file: ./firebase-service-account.json
+  service-account-file: /firebase-service-account.json
 
 # S3
 aws: