Update AGG and Skia expectations CL [1] changes the rendering behavior for closed 0-length paths for both AGG and Skia. Update the corpus tests expectations accordingly. [1] https://pdfium-review.googlesource.com/c/pdfium/+/103632 Bug: pdfium:1812, pdfium:1983 Change-Id: Ie61ebab158f94a491b5993147a1f36a93b0df570 Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium_tests/+/103631 Reviewed-by: Lei Zhang <thestig@chromium.org>