Update application.properties

Author: sungchaewon

src/main/resources/application.properties

@@ -32,9 +32,9 @@ spring.application.name=FixLog
 server.port=8083
 
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
-spring.datasource.url=${MYSQL_URL}
-spring.datasource.username=${MYSQL_USERNAME}
-spring.datasource.password=${MYSQL_PASSWORD}
+spring.datasource.url=${SPRING_DATASOURCE_URL}
+spring.datasource.username=${SPRING_DATASOURCE_USERNAME}
+spring.datasource.password=${SPRING_DATASOURCE_PASSWORD}
 
 spring.jpa.hibernate.ddl-auto=update
 spring.jpa.show-sql=true