Fix formatting issues in executorch/test/size_test.cpp (#3065)

Summary:
Pull Request resolved: #3065

Required for LLVM-17. Fixes a mismatch between what the format string expects and the type supplied.

Reviewed By: tarun292

Differential Revision: D56206887

fbshipit-source-id: f52883cb43840b34b5d5b25711f73bc71979da30

Author: r-barnes

test/size_test.cpp

@@ -37,13 +37,17 @@ int main(int argc, char** argv) {
 
   Result<FileDataLoader> loader = FileDataLoader::from(argv[1]);
   ET_CHECK_MSG(
-      loader.ok(), "FileDataLoader::from() failed: 0x%" PRIx32, loader.error());
+      loader.ok(),
+      "FileDataLoader::from() failed: 0x%" PRIx32,
+      static_cast<uint32_t>(loader.error()));
 
   uint32_t prof_tok = EXECUTORCH_BEGIN_PROF("de-serialize model");
   const auto program = Program::load(&loader.get());
   EXECUTORCH_END_PROF(prof_tok);
   ET_CHECK_MSG(
-      program.ok(), "Program::load() failed: 0x%" PRIx32, program.error());
+      program.ok(),
+      "Program::load() failed: 0x%" PRIx32,
+      static_cast<uint32_t>(program.error()));
   ET_LOG(Info, "Program file %s loaded.", argv[1]);
 
   // Use the first method in the program.