feat: add keep-id to DocumentCleaner

[CarlosFerLo]

Related Issues

• fixes Preprocessing should allow keeping Document ids unchanged #7557

Proposed Changes:

The DocumentCleaner has now an optional property called keep_id that keeps the original id of all the input documents.

How did you test it?

Added one extra unit test and edited the one that checks correct initialisation of the object.

Notes for the reviewer

This PR is a clone of the #7618 original PR that cannot be reopened because I messed up with git.

Checklist

• I have read the contributors guidelines and the code of conduct ✅
• I have updated the related issue with new insights and changes ✅
• I added unit tests and updated the docstrings ✅
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:. ✅
• I documented my code ✅
• I ran pre-commit hooks and fixed any issue ✅

[coveralls]

Pull Request Test Coverage Report for Build 9109722913

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.002%) to 90.587%

---

Files with Coverage Reduction	New Missed Lines	%
components/preprocessors/document_cleaner.py	1	98.82%

Totals
Change from base Build 9103206687:	0.002%
Covered Lines:	6592
Relevant Lines:	7277

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💛 - Coveralls

[vblagoje]

Thank you @CarlosFerLo I'll let @silvanocerza approve this one and remove myself from PR review. Thanks for your contribution 🙏

[silvanocerza]

Awesome, thanks for the contribution!