perf: upgrade pdfminer-six to 20260107

[CyMule]

Fixes ~15-18% performance regression introduced in 20251230 where f-strings were evaluated eagerly even when logging was disabled.

See: pdfminer/pdfminer.six#1233
Fix: pdfminer/pdfminer.six#1234

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Note

Restores PDF parsing performance by updating dependency and releasing a new dev version.

• Deps: Upgrade pdfminer-six from 20251230 to 20260107 in requirements/extra-pdf-image.txt to fix ~15–18% slowdown from eager f-string evaluation in logging
• Release: Bump __version__ to 0.18.27-dev5 and add CHANGELOG entry under Enhancement

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	pypi/​pdfminer-six@​20251230 ⏵ 20260107	+1

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