Update application.properties

Author: la18201498539

code/backend/src/main/resources/application.properties

@@ -1,7 +1,7 @@
 server.port=8080
 
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
-spring.datasource.url=jdbc:mysql://47.253.144.78:3306/sec_hand?serverTimezone=UTC&characterEncoding=UTF-8&useSSL=false&serverTimezone=GMT
+spring.datasource.url=jdbc:mysql://47.90.156.233:3306/sec_hand?serverTimezone=UTC&characterEncoding=UTF-8&useSSL=false&serverTimezone=GMT
 spring.datasource.username=root
 spring.datasource.password=haBshjbwei23432*&