Database master slave config support different db name and password,now is same

[502110983]

Database master slave config support different db name and password,now is same.

中文：数据库主从的配置，db.user和db.password，最好都能分别配置，不可能每个数据库的账号密码都是一样的

[nacos-bot]

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Database master slave config support different db name and password,now is same

Database master slave config support different db name and password,now is same.

Chinese: The configuration of the database master and slave, db.user and db.password, can be configured separately, it is impossible to have the same account password for each database.

[chuntaojun]

ok, I'll support it