chore(deps): update dependency bblanchon/pdfium-binaries to v6447

[renovate]

This PR contains the following updates:

Package	Update	Change
bblanchon/pdfium-binaries	major	6406 -> 6447

---

Release Notes

bblanchon/pdfium-binaries (bblanchon/pdfium-binaries)

v6447: PDFium 126.0.6447.0

Compare Source

This version was built with branch chromium/6447 of PDFium

Changes

Commits between chromium/6406 and chromium/6447:

• Gate GDI APIs behind IsUser32AndGdi32Available in cpdf_interactiveform.cpp
• Deduplicate code in CPDF_Parser and rename some methods
• Fix parsing of PDFs with multiple cross reference streams
• Add another pixel test for an edited PDF that regressed
• Spanify CFX_SeekableStreamProxy
• Spanify FPDFText_GetText() and FPDF_GetBoundedText().
• Don't allow two-arg span constructor without UNSAFE_BUFFER() annotation.
• Apply UNSAFE_BUFFERS() to two-arg span ctor in core/
• Put plugin-specific logic in pdfium_common_config.
• Apply UNSAFE_BUFFERS() to two-arg span ctor in xfa/
• Apply UNSAFE_BUFFERS() to two-arg span ctor in testing/
• Apply UNSAFE_BUFFERS() to two-arg span ctor in fpdfsdk/
• Use new instrumented_libs repo
• Roll Zlib from c5bf1b566e5d to d076d8bd0898 (6 revisions)
• Roll build/ e5ff2eff3..e4eef53d5 (27 commits)
• Fix unsafe buffer usage in fxbarcode/datamatrix.
• Avoid some two-arg make_span() calls via extern spans.
• Fix unsafe buffer usage in (non-XFA) JS bindings.
• Fix some unsafe usage in cpdfdsk_{helpers,interactiveform}.cpp
• Roll v8/ f6f7c6822..7f0739496 (162 commits)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.