increase kMaxValueLength to 8192 (#27521)

### Motivation and Context
Change this because for 32B model like Qwen2.5-coder-32B in TRTRTX ep,
there is a long string in GenAI


https://github.com/microsoft/onnxruntime-genai/blob/3c47932e9d7afa0d44db0b3918e479bbdd4c5353/src/models/model.cpp#L516

Example

```
AddConfigEntry: ep.nvtensorrtrtxexecutionprovider.nv_profile_min_shapes (length=4364) = input_ids:1x1,attention_mask:1x1,past_key_values.0.key:1x8x0x128,past_key_values.0.value:1x8x0x128,past_key_values.1.key:1x8x0x128,past_key_values.1.value:1x8x0x128,past_key_values.2.key:1x8x0x128,past_key_values.2.value:1x8x0x128,past_key_values.3.key:1x8x0x128,past_key_values.3.value:1x8x0x128,past_key_values.4.key:1x8x0x128,past_key_values.4.value:1x8x0x128,past_key_values.5.key:1x8x0x128,past_key_values.5.value:1x8x0x128,past_key_values.6.key:1x8x0x128,past_key_values.6.value:1x8x0x128,past_key_values.7.key:1x8x0x128,past_key_values.7.value:1x8x0x128,past_key_values.8.key:1x8x0x128,past_key_values.8.value:1x8x0x128,past_key_values.9.key:1x8x0x128,past_key_values.9.value:1x8x0x128,past_key_values.10.key:1x8x0x128,past_key_values.10.value:1x8x0x128,past_key_values.11.key:1x8x0x128,past_key_values.11.value:1x8x0x128,past_key_values.12.key:1x8x0x128,past_key_values.12.value:1x8x0x128,past_key_values.13.key:1x8x0x128,past_key_values.13.value:1x8x0x128,past_key_values.14.key:1x8x0x128,past_key_values.14.value:1x8x0x128,past_key_values.15.key:1x8x0x128,past_key_values.15.value:1x8x0x128,past_key_values.16.key:1x8x0x128,past_key_values.16.value:1x8x0x128,past_key_values.17.key:1x8x0x128,past_key_values.17.value:1x8x0x128,past_key_values.18.key:1x8x0x128,past_key_values.18.value:1x8x0x128,past_key_values.19.key:1x8x0x128,past_key_values.19.value:1x8x0x128,past_key_values.20.key:1x8x0x128,past_key_values.20.value:1x8x0x128,past_key_values.21.key:1x8x0x128,past_key_values.21.value:1x8x0x128,past_key_values.22.key:1x8x0x128,past_key_values.22.value:1x8x0x128,past_key_values.23.key:1x8x0x128,past_key_values.23.value:1x8x0x128,past_key_values.24.key:1x8x0x128,past_key_values.24.value:1x8x0x128,past_key_values.25.key:1x8x0x128,past_key_values.25.value:1x8x0x128,past_key_values.26.key:1x8x0x128,past_key_values.26.value:1x8x0x128,past_key_values.27.key:1x8x0x128,past_key_values.27.value:1x8x0x128,past_key_values.28.key:1x8x0x128,past_key_values.28.value:1x8x0x128,past_key_values.29.key:1x8x0x128,past_key_values.29.value:1x8x0x128,past_key_values.30.key:1x8x0x128,past_key_values.30.value:1x8x0x128,past_key_values.31.key:1x8x0x128,past_key_values.31.value:1x8x0x128,past_key_values.32.key:1x8x0x128,past_key_values.32.value:1x8x0x128,past_key_values.33.key:1x8x0x128,past_key_values.33.value:1x8x0x128,past_key_values.34.key:1x8x0x128,past_key_values.34.value:1x8x0x128,past_key_values.35.key:1x8x0x128,past_key_values.35.value:1x8x0x128,past_key_values.36.key:1x8x0x128,past_key_values.36.value:1x8x0x128,past_key_values.37.key:1x8x0x128,past_key_values.37.value:1x8x0x128,past_key_values.38.key:1x8x0x128,past_key_values.38.value:1x8x0x128,past_key_values.39.key:1x8x0x128,past_key_values.39.value:1x8x0x128,past_key_values.40.key:1x8x0x128,past_key_values.40.value:1x8x0x128,past_key_values.41.key:1x8x0x128,past_key_values.41.value:1x8x0x128,past_key_values.42.key:1x8x0x128,past_key_values.42.value:1x8x0x128,past_key_values.43.key:1x8x0x128,past_key_values.43.value:1x8x0x128,past_key_values.44.key:1x8x0x128,past_key_values.44.value:1x8x0x128,past_key_values.45.key:1x8x0x128,past_key_values.45.value:1x8x0x128,past_key_values.46.key:1x8x0x128,past_key_values.46.value:1x8x0x128,past_key_values.47.key:1x8x0x128,past_key_values.47.value:1x8x0x128,past_key_values.48.key:1x8x0x128,past_key_values.48.value:1x8x0x128,past_key_values.49.key:1x8x0x128,past_key_values.49.value:1x8x0x128,past_key_values.50.key:1x8x0x128,past_key_values.50.value:1x8x0x128,past_key_values.51.key:1x8x0x128,past_key_values.51.value:1x8x0x128,past_key_values.52.key:1x8x0x128,past_key_values.52.value:1x8x0x128,past_key_values.53.key:1x8x0x128,past_key_values.53.value:1x8x0x128,past_key_values.54.key:1x8x0x128,past_key_values.54.value:1x8x0x128,past_key_values.55.key:1x8x0x128,past_key_values.55.value:1x8x0x128,past_key_values.56.key:1x8x0x128,past_key_values.56.value:1x8x0x128,past_key_values.57.key:1x8x0x128,past_key_values.57.value:1x8x0x128,past_key_values.58.key:1x8x0x128,past_key_values.58.value:1x8x0x128,past_key_values.59.key:1x8x0x128,past_key_values.59.value:1x8x0x128,past_key_values.60.key:1x8x0x128,past_key_values.60.value:1x8x0x128,past_key_values.61.key:1x8x0x128,past_key_values.61.value:1x8x0x128,past_key_values.62.key:1x8x0x128,past_key_values.62.value:1x8x0x128,past_key_values.63.key:1x8x0x128,past_key_values.63.value:1x8x0x128
Traceback (most recent call last):
  File "Convert to NVIDIA TRT for RTX_32B\test_config.py", line 2, in <module>
    model = og.Model("Convert to NVIDIA TRT for RTX_32B\\model")
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: Config value is longer than maximum length: 4096
```

---------

Co-authored-by: hualxie <hualxie@microsoft.com>

Author: xieofxie

include/onnxruntime/core/session/onnxruntime_session_options_config_keys.h

@@ -13,7 +13,7 @@
  * The maximum length of the Config Key is 1024
  *
  * The string format of a SessionOptions Config Value is defined individually for each Config.
- * The maximum length of the Config Value is 2048
+ * The maximum length of the Config Value is 8192
  */
 
 // Key for disable PrePacking,

onnxruntime/core/framework/config_options.h

@@ -18,7 +18,7 @@ struct ConfigOptions {
   // Maximum key/value string lengths specified in
   // core/session/onnxruntime_session_options_config_keys.h
   static constexpr size_t kMaxKeyLength = 1024;
-  static constexpr size_t kMaxValueLength = 4096;
+  static constexpr size_t kMaxValueLength = 8192;
 
   std::unordered_map<std::string, std::string> configurations;
 

onnxruntime/test/shared_lib/test_session_options.cc

@@ -2,6 +2,7 @@
 // Licensed under the MIT License.
 
 #include "core/common/common.h"
+#include "core/framework/config_options.h"
 #include "core/graph/constants.h"
 #include "core/session/onnxruntime_cxx_api.h"
 #include "core/session/onnxruntime_session_options_config_keys.h"
@@ -25,7 +26,7 @@ TEST(CApiTest, session_options_deterministic_compute) {
 
 TEST(CApiTest, session_options_oversized_affinity_string) {
   Ort::SessionOptions options;
-  std::string long_affinity_str(onnxruntime::kMaxStrLen + 1, '0');
+  std::string long_affinity_str(ConfigOptions::kMaxValueLength + 1, '0');
   try {
     options.AddConfigEntry(kOrtSessionOptionsConfigIntraOpThreadAffinities, long_affinity_str.c_str());
     ASSERT_TRUE(false) << "Creation of config should have thrown exception";