[Improve][E2E][connector-redis-e2e] Transfer e2e test cases to unit tests

[chl-wxp]

Purpose of this pull request

Does this PR introduce any user-facing change?

How was this patch tested?

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If necessary, please update incompatible-changes.md to describe the incompatibility caused by this PR.
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config

[chl-wxp]

issue:
#10017

[LiJie20190102]

LGTM

[chl-wxp]

@corgy-w @zhangshenghang Help me take a look

[zhangshenghang]

Suggested change

	public void testFakeToRedisDeleteZSetTest() throws IOException {

[chl-wxp]

Thanks for the review.
It seems this suggested change doesn’t introduce any actual diff.
Please let me know if there is anything specific you’d like me to adjust.