Bump pikepdf from 5.6.1 to 10.10.0 in /docker/readpdf

[dependabot]

Bumps pikepdf from 5.6.1 to 10.10.0.

Release notes

Sourced from pikepdf's releases.

v10.10.0

Behavior change

• {meth}pikepdf.PdfImage.as_pil_image and {meth}pikepdf.PdfImage.extract_to now apply an image's soft mask (/SMask) or explicit/colour-key mask (/Mask) by default, returning an image with an alpha channel (LA or RGBA) and writing a transparency-capable format (.png). Previously the mask was silently ignored and the opaque base image was returned. Images without a mask are unaffected. Pass apply_mask=False to recover the old behavior and obtain only the opaque base image.

New features

• Image masking is now honored when extracting images. /SMask soft masks, /Mask stencil (explicit) masks, and /Mask colour-key masks are composited into an alpha channel. Soft-mask images whose resolution differs from the base image are resampled to match (ISO 32000-2 §8.9.6).
• Added support for /CalRGB, /CalGray and /CalCMYK images, which previously raised NotImplementedError. The samples are decoded as their device equivalents, and for CalRGB/CalGray an ICC profile synthesized from the colour space's WhitePoint/Gamma/Matrix is attached to the extracted image so the calibration is preserved for colour-managed consumers.
• Added support for the /Lab colour space, extracted as a Pillow LAB image (saved as TIFF) with the PDF L*/a*/b* ranges remapped to Pillow's conventions.
• Added support for 16-bit-per-component images. 16-bit grayscale is extracted losslessly as Pillow I;16; 16-bit RGB and CMYK are reduced to 8-bit (with a warning) because Pillow has no higher-bit-depth raw mode for them.
• Extended colour-space handling to several cases that previously raised NotImplementedError: ICCBased CMYK images and indexed images now produce the correct default /Decode array, and inline images that name their colour space now resolve it from the in-scope /Resources when obtained via {func}pikepdf.parse_content_stream.
• JPEG (/DCTDecode) images with a non-default /ColorTransform -- a YCCK CMYK or a non-YCbCr RGB JPEG -- are now decoded via Pillow (which honours the JPEG's own markers) and transcoded, instead of failing to extract.
• Filter chains that wrap a single terminal image codec (/DCTDecode, /CCITTFaxDecode, /JPXDecode, /JBIG2Decode) in any number of generalized/specialized filters (Flate, LZW, ASCII85/Hex, RunLength) are now peeled and extracted seamlessly.
• Added {attr}pikepdf.PdfImage.MAX_IMAGE_PIXELS, a settable class-level limit on the number of pixels pikepdf will decode from a single image. Until set, it defaults to max(500_000_000, PIL.Image.MAX_IMAGE_PIXELS) -- a floor suited to high-DPI scanned PDFs -- and tracks Pillow's setting; once assigned it becomes independent of Pillow. Set it to None to disable the check.
• {class}pikepdf.Array now implements the standard Python list interface: slicing (including del on slices and slice assignment), and the clear(), count(), index(), insert(), pop(), remove(), and reverse() methods.

... (truncated)

Commits

• 4ab4b6b Bump version: v10.10.0
• 4d238e3 Merge branch 'feature/prek-migration'
• ab1a956 docs: point contributors at prek instead of pre-commit
• 0aeaf89 ci: run prek through uv instead of pre-commit/action
• 37c6556 build: remove pre-commit config and workflow
• d332b5d build: finalize prek.toml (builtin hooks, clang-format, mypy/ruff scope)
• 8cd5f57 build: pin prek and clang-format through the venv, drop pre-commit
• 1715842 style: fix ruff format/lint violations ahead of prek migration
• 6afdb1c Merge branch 'feature/image-spec-gaps'
• d35ad9e types: annotate image facade methods and Buffer stub
• Additional commits viewable in compare view

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