Pulling in docling-core, docling, pymupdf fixes

[jamesbraza]

Pulling in:

• docling-core fix: fix: accept relative URIs in PdfHyperlink without validation failure docling-project/docling-core#520
• docling rename: feat: Introduce docling-parse v5 and deprecate old docling-parse backends docling-project/docling#2872
• pymupdf typing fix: Typing broken because of *_forward_decl pymupdf/PyMuPDF#4903

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Note

Medium Risk
Dependency upgrades and backend/API swaps may subtly change PDF parsing output/behavior and add heavier transitive requirements (e.g., torch), so parsing regression testing is important.

Overview
Updates paper-qa-docling to require docling>=2.74, drops the docling-parse<5 downpin, and switches the default PDF backend from DoclingParseV4DocumentBackend to the renamed DoclingParseDocumentBackend.

Updates paper-qa-pymupdf to remove the dev-only PyMuPDF downpin and adjusts table extraction to use pymupdf.table.find_tables(page) instead of page.find_tables(). The lockfile is refreshed to newer docling/docling-core/docling-parse and pymupdf versions (including new transitive deps).

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[Copilot]

Pull request overview

This PR updates the repo’s PDF parsing stack by upgrading docling/docling-core (including the backend rename) and updating PyMuPDF to pick up upstream fixes, with corresponding dependency/lockfile adjustments.

Changes:

• Bump docling, docling-core, docling-ibm-models, and docling-parse in uv.lock, and align paper-qa-docling dependencies accordingly.
• Update the Docling reader to use DoclingParseDocumentBackend (rename from the v4 backend).
• Update the PyMuPDF reader to call pymupdf.table.find_tables(page) and remove the previous dev-only PyMuPDF downpin.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
uv.lock	Updates locked versions for docling-related packages and PyMuPDF; adjusts editable package dependency metadata accordingly.
packages/paper-qa-pymupdf/src/paperqa_pymupdf/reader.py	Switches table detection callsite to find_tables(page) to match upstream typing/API changes.
packages/paper-qa-pymupdf/pyproject.toml	Removes the dev-only PyMuPDF <1.27 downpin now that the upstream typing issue is fixed.
packages/paper-qa-docling/src/paperqa_docling/reader.py	Updates the default backend import/class to the renamed Docling backend.
packages/paper-qa-docling/pyproject.toml	Removes the explicit docling-parse<5 downpin and tightens docling minimum version to >=2.74.

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