Revert "change password to 'root'"

This reverts commit 2c41158f8ca6dfa8d9c2659599b0fc94557b19e2.

hichina-admin-backend/src/main/resources/application-dev.properties

@@ -2,7 +2,7 @@ server.port=9050
 
 spring.datasource.url=jdbc:mysql://localhost:3306/unified_hichina?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=utf8&&allowMultiQueries=true
 spring.datasource.username=root
-spring.datasource.password=root
+spring.datasource.password=Passw0rd
 spring.datasource.tomcat.max-wait=20000
 spring.datasource.tomcat.max-active=50
 spring.datasource.tomcat.max-idle=20