chore(data-warehouse): Removed pipeline dir

[Gilbert09]

Problem

• The DLT pipeline has a custom dir set, which is only to store temp files.
• From what I can tell, we don't need this in the temporal workers, and it makes things harder to debug locally when using the DLT CLI. e.g. when trying to debug a local pipeline, it can't be found as the job is (a) within subfolders, and (b) in a custom directory

Changes

• Removes the custom dir for the pipeline temp files
• Has no impact on how the files in S3 are written or read

Does this work well for both Cloud and self-hosted?

Yep

How did you test this code?

Locally