Fix corpus tests substitute font spacing

CL changing behavior:
https://pdfium-review.googlesource.com/c/6630/

Bug: chromium:431507
Change-Id: I6f87de0a143379d674d357af70d0690dd8e7ee0b
Reviewed-on: https://pdfium-review.googlesource.com/6713
Reviewed-by: dsinclair <dsinclair@chromium.org>
diff --git a/fx/other/3bigpreview_expected.pdf.0.png b/fx/other/3bigpreview_expected.pdf.0.png
index 6d448d0..d566f87 100644
--- a/fx/other/3bigpreview_expected.pdf.0.png
+++ b/fx/other/3bigpreview_expected.pdf.0.png
Binary files differ
diff --git a/fx/text/5.5_simple_font_expected.pdf.0.png b/fx/text/5.5_simple_font_expected.pdf.0.png
index fc94615..22c5a10 100644
--- a/fx/text/5.5_simple_font_expected.pdf.0.png
+++ b/fx/text/5.5_simple_font_expected.pdf.0.png
Binary files differ
diff --git a/fx/text/en_foxit_expected.pdf.0.png b/fx/text/en_foxit_expected.pdf.0.png
index 1c767ce..4850820 100644
--- a/fx/text/en_foxit_expected.pdf.0.png
+++ b/fx/text/en_foxit_expected.pdf.0.png
Binary files differ
diff --git a/third_party/tcpdf/example_033_expected.pdf.0.png b/third_party/tcpdf/example_033_expected.pdf.0.png
index 1498baf..3915f91 100644
--- a/third_party/tcpdf/example_033_expected.pdf.0.png
+++ b/third_party/tcpdf/example_033_expected.pdf.0.png
Binary files differ
diff --git a/third_party/tcpdf/example_038_expected.pdf.0.png b/third_party/tcpdf/example_038_expected.pdf.0.png
index 51e035b..b263a4f 100644
--- a/third_party/tcpdf/example_038_expected.pdf.0.png
+++ b/third_party/tcpdf/example_038_expected.pdf.0.png
Binary files differ