modify datasource.properties postgresql password

dolphinscheduler-dao/src/main/resources/datasource.properties

@@ -22,8 +22,8 @@
 # mysql
 spring.datasource.driver-class-name=org.postgresql.Driver
 spring.datasource.url=jdbc:postgresql://localhost:5432/dolphinscheduler
-spring.datasource.username=root
-spring.datasource.password=root
+spring.datasource.username=test
+spring.datasource.password=test
 
 ## base spring data source configuration todo need to remove
 #spring.datasource.type=com.alibaba.druid.pool.DruidDataSource