feat: updating the idoctags serializer

[PeterStaar-IBM]

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[github-actions]

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[mergify]

Merge Protections

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🔴 Require two reviewer for test updates

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When test data is updated, we require two reviewers

• #approved-reviews-by >= 2

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Make sure that we follow https://www.conventionalcommits.org/en/v1.0.0/

• title ~= ^(fix|feat|docs|style|refactor|perf|test|build|ci|chore|revert)(?:\(.+\))?(!)?:

[dosubot]

Related Documentation

Checked 4 published document(s) in 1 knowledge base(s). No updates required.

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[codecov]

Codecov Report

❌ Patch coverage is 71.92982% with 32 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
docling_core/experimental/idoctags.py	67.14%	23 Missing ⚠️
docling_core/transforms/serializer/doctags.py	79.54%	9 Missing ⚠️

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