Update corpus test expectations for macOS 14

Update expectations for PDFs that render differently in macOS 12 and 14.

Bug: 432283590
Change-Id: Ia1e76082ae0a411f8d61788aec25c9f7f6c14987
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium_tests/+/134111
Reviewed-by: Tom Sepez <tsepez@chromium.org>