Update securitylink-backend-qa.properties

securitylink-backend-qa.properties

 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
 spring.datasource.druid.filter.stat.db-type=mysql
 spring.datasource.druid.driver-class-name=com.mysql.cj.jdbc.Driver
-spring.datasource.druid.username=admin_sl_mysql
-spring.datasource.druid.password=ny:sqknVtZcc9EMku57aa91Lw==
+spring.datasource.druid.username=sl_mysql
+spring.datasource.druid.password=ny:PPjdSOR66XUA4PKR630BMA==
 spring.datasource.druid.initial-size=5
 spring.datasource.druid.max-active=50
 spring.datasource.druid.min-idle=5