Add the file to reproduce fuzz issue 57639

It is possible to reproduce the failure with this file following the
instructions with oss-fuzz, though it does not cause a failure in CI.

The failure was introduced in
18c1ffe0df335a46cddbeb96e2cb939d850df9fa.

1 files changed, 1 insertions, 1 deletions

diff --git a/fuzz/qtest/fuzz.test b/fuzz/qtest/fuzz.test
index d234ce79..26995dac 100644
--- a/fuzz/qtest/fuzz.test
+++ b/fuzz/qtest/fuzz.test
@@ -20,7 +20,7 @@ my @fuzzers = (
     ['pngpredictor' => 1],
     ['runlength' => 6],
     ['tiffpredictor' => 1],
-    ['qpdf' => 52],             # increment when adding new files
+    ['qpdf' => 53],             # increment when adding new files
     );
 
 my $n_tests = 0;