rangeWithScores methods returning not null in transactions

[LeeHyungGeol]

Fix. #3187

Summary

Add missing RedisCommand enum entries for ZSet WithScores methods.

The rangeWithScores family of methods (zRangeWithScores, zRangeByScoreWithScores, zRevRangeWithScores, zRevRangeByScoreWithScores) were missing from the RedisCommand enumeration, causing ConnectionSplittingInterceptor to resolve them as UNKNOWN commands.

This resulted in read-only methods being incorrectly queued in MULTI/EXEC blocks instead of executing immediately on separate connections, causing them to return null in transactional contexts.

Changes:

• Add ZRANGEWITHSCORES, ZRANGEBYSCOREWITHSCORES, ZREVRANGEWITHSCORES, ZREVRANGEBYSCOREWITHSCORES enum entries in RedisCommand.java
• Add regression test in TransactionalStringRedisTemplateTests.java

The fix ensures these read-only methods are properly recognized and execute
immediately in transactional contexts.

• You have read the Spring Data contribution guidelines.
• You use the code formatters provided here and have them applied to your changes. Don’t submit any formatting related changes.
• You submit test cases (unit or integration tests) that back your changes.
• You added yourself as author in the headers of the classes you touched. Amend the date range in the Apache license header if needed. For new types, add the license header (copy from another file and set the current year only).

[onobc]

Thank you @LeeHyungGeol for the excellent contribution! I added a tiny polish commit to refactor out the verification method in the regression test (here).

Closing in favor of 96f250d