FIX-#7375: Fix Series.duplicated dropping name

[noloerino]

What do these changes do?

Series.duplicated uses DataFrame.duplicated in implementation, but since this drops the original Series's name, we need to manually restore it after the computation.

• first commit message and PR title follow format outlined here

  NOTE: If you edit the PR title to match this format, you need to add another commit (even if it's empty) or amend your last commit for the CI job that checks the PR title to pick up the new PR title.

• passes flake8 modin/ asv_bench/benchmarks scripts/doc_checker.py
• passes black --check modin/ asv_bench/benchmarks scripts/doc_checker.py
• signed commit with git commit -s
• Resolves BUG: Series.duplicated doesn't preserve Series name #7375
• tests added and passing
• module layout described at docs/development/architecture.rst is up-to-date