Shuffle CC result on group before writing out

[ayushdg]

Description

This PR shuffles the connected_components output by group to ensure that all documents belonging to the same duplicate group/component end up in the same partition. The motivation for doing this ensure the example showcasing document removal work as intended: https://github.com/NVIDIA/NeMo-Curator/blob/main/examples/fuzzy_deduplication.py#L87.

Usage

N/A

Checklist

• [X] I am familiar with the Contributing Guide.
• [X] New or Existing tests cover these changes.
• [X] The documentation is up to date with these changes.