chore: update pypdfium2 requirement from >=5.7.1 to >=5.8.0

[dependabot]

Updates the requirements on pypdfium2 to permit the latest version.

Release notes

Sourced from pypdfium2's releases.

5.8.0

Changes (Release 5.8.0)

Summary (pypdfium2)

• Autoclose machinery update.
  • Encapsulate finalizer state in a mutable object.
  • Objects now remove themselves from their parent's kids cache on garbage collection / closing, to avoid accumulation.
  • Global ObjectTracker added (objects are grouped by type and remove themselves from the tracker on finalization likewise). This may allow to destroy and re-initalize the library during a session.
  • Fixed some issues and inconsistencies in autoclose hooks that were unmasked by the above changes.
    • PdfDocument.page_as_xobject() now registers the XObject as a child of dest_pdf rather than self.
    • Mark pageobjects (PdfObject) as untracked.
    • For pages registered as kids of a formenv, PdfPage.parent now points at the formenv. This means the .parent property should be seen as purely an autoclose hook and not something to use for other purposes.
    • Fixed a test case to use _detach_finalizer() instead of _finalizer.detach().
  • Changed DEBUG_AUTOCLOSE to hold a loglevel rather than just a bool. This lets us distinguish between noisy debug messages and actual warnings. The default level is now logging.WARNING.
  • Should any issues surface with these changes (e.g. hitting assertions, or performance concerns), please let us know. Provide logs with autoclose debugging enabled if applicable.
• PdfPage.get_objects(): Added textpage passthrough parameter. This is required for PdfTextObj.extract(). Raise a meaningful exception if the textpage is missing. Demonstrate .extract() in pageobjects CLI.
• PdfFont.get_base_name(), .get_family_name(): decoding errors option added, now defaults to "replace".
• New helpers PdfFont.load_standard(), .STANDARD_FONTS and PdfDefaultTTFMap added.
• Errchecks added to PdfPage.get_rotation(), .insert_obj() and PdfUnspHandler.setup().
• New font diagnostic CLIs added (pypdfium2 fonts and default-fonts). Optional dependency tabulate.
• In the CLI dispatcher, try to load only the module that is actually used.
• CLI / setup_logging(): Fix warnings to be shown by removing an incorrect logging.captureWarnings(True) (that would require configuring the py.warnings logger or root logger). Instead, use just warnings.simplefilter("always") for now. Also, fix DEBUG_SYSFONTS being a boolean option. Share streamhandler across loggers.

Commits between 5.7.1 and 5.8.0 (latest commit first):

• 9a41bfc [autorelease main] update 5.8.0
• a2da0a1 Make just check happy
• 9272319 Polish changelog
• 0aa747a CLI/fonts: don't bother with standard fonts
• 60f1c20 Share streamhandler across all loggers
• a25cbc9 continue on changelog
• 828baed DEBUG_AUTOCLOSE: distinguish between debug and warning messages
• 2d4035d Continue polishing the changelog
• b4a4c5d docs: add back |br| template for rst docs
• 42382c2 sysfontinfo nits
• e400ccc changelog: fix a typo found by codespell
• d87ad30 Autoclose machinery improvements, objects tracker, new helpers (#426)
• d9d8ad4 RTD: update to ubuntu-26.04
• 07608ad Remove tabulate from req/docs.txt after all
• 55564a0 build(deps): bump conda-incubator/setup-miniconda from 3 to 4
• 885f9ff Fix unused import reported by autoflake
• 8783f53 Continue on CLI dispatcher
• 95639af Add new errchecks to get_rotation() and insert_obj()

... (truncated)

Commits

• 9a41bfc [autorelease main] update 5.8.0
• a2da0a1 Make just check happy
• 9272319 Polish changelog
• 0aa747a CLI/fonts: don't bother with standard fonts
• 60f1c20 Share streamhandler across all loggers
• a25cbc9 continue on changelog
• 828baed DEBUG_AUTOCLOSE: distinguish between debug and warning messages
• 2d4035d Continue polishing the changelog
• b4a4c5d docs: add back |br| template for rst docs
• 42382c2 sysfontinfo nits
• Additional commits viewable in compare view

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