[Improve][Sort] Add end to end test case for sort-connector-redis-v1.15

[XiaoYou201]

Description

sort-connector-redis-v1.15 has not end to end test case yet, Add a redis to redis test case to it.

InLong Component

InLong Sort

Are you willing to submit PR?

• [X] Yes, I am willing to submit a PR!

Code of Conduct

• [X] I agree to follow this project's Code of Conduct