Bump pypdfium2 from 5.1.0 to 5.3.0

[dependabot]

Bumps pypdfium2 from 5.1.0 to 5.3.0.

Release notes

Sourced from pypdfium2's releases.

5.3.0

Changes (Release 5.3.0)

Summary (pypdfium2)

• Fixed inclusion of loongarch64 build in GH attestation. This was an oversight in the workflow.
• ppc64le (glibc) is now built at pdfium-binaries using upstream's tooling. This means pypdfium2's conda builds now also support this platform. Updated pypdfium2's setup/workflow accordingly to use the pdfium-binaries.

Commits between 5.2.0 and 5.3.0 (latest commit first):

• 04b411a [autorelease main] update 5.3.0
• a34e0c0 resources.rc: set just the year, remove -present
• db1d891 Bump copyright year
• 52a4689 build_native: order functions as they are called
• 7e2f78f build_native: a few more enhancements
• 67f4874 build_native: move legacy_libs_compat patch to proper place
• 1ab4ce4 build_native: apply container compat patch only where necessary
• 6967832 Drop now-unused patches
• 5dbd1f2 get_cross_deps: map ppc64
• 9b87ea9 Patchless ppc64(le) build
• 994125d Platform detection hotfix
• f5d3795 Bump pdfium pin to 7592 to make ppc64le work
• d0f4b03 ppc64(le): use the pdfium-binaries
• 29b697b Somewhat simplify utils/get_gcc_prefix.py
• b9bbab6 fix: include loongarch64 build in GH attestation
• 32aa336 build(deps): bump actions/download-artifact from 6 to 7
• 35b4f4c build(deps): bump actions/upload-artifact from 5 to 6
• c983a6c another pyproject.toml/cibw correction
• f60638e readme nit
• 8ba2e9b cibw: fix dnf clean/makecache logic

Commits between 7568 and 7616 (latest commit first):

• 99b9fd3b0 Add new span versions of CJBig2_Image::GetLine()
• adab0df23 Rename CJBig2_Image::GetLine() to GetLinePtr()
• f3518ab0a Consolidate identical compose code in CJBig2_Image
• cb05cb24e Use unsigned bit position in FaxModule::FaxG4Decode()
• 83b6a77b0 Remove some UNSAFE_TODO() usage in CJBig2_Image

... (truncated)

Commits

• 04b411a [autorelease main] update 5.3.0
• a34e0c0 resources.rc: set just the year, remove -present
• db1d891 Bump copyright year
• 52a4689 build_native: order functions as they are called
• 7e2f78f build_native: a few more enhancements
• 67f4874 build_native: move legacy_libs_compat patch to proper place
• 1ab4ce4 build_native: apply container compat patch only where necessary
• 6967832 Drop now-unused patches
• 5dbd1f2 get_cross_deps: map ppc64
• 9b87ea9 Patchless ppc64(le) build
• Additional commits viewable in compare view

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