message: fuzz: Limit ParseISO8601DateTime fuzzing to 32-bit
diff: @@ -15,7 +15,7 @@ FUZZ_TARGET(parse_iso8601)
  {
  FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  - const int64_t random_time = fuzzed_data_provider.ConsumeIntegral<int64_t>();
  + const int64_t random_time = fuzzed_data_provider.ConsumeIntegral<int32_t>();
  const std::string random_string = fuzzed_data_provider.ConsumeRemainingBytesAsString();
  const std::string iso8601_datetime = FormatISO8601DateTime(random_time);
  