Sort the file paths to replay in deterministic order.

PiperOrigin-RevId: 633627015

fuzztest/internal/runtime.cc

diff --git a/fuzztest/internal/runtime.cc b/fuzztest/internal/runtime.cc
index 0a2d9cf..c84a4fc 100644
--- a/fuzztest/internal/runtime.cc
+++ b/fuzztest/internal/runtime.cc
@@ -574,6 +574,7 @@
   if (files.empty()) {
     files.push_back(std::string(file_or_dir));
   }
+  std::sort(files.begin(), files.end());
   return files;
 }