fix: fix the config.pbtxt example after converting the tensorflow to onnx

[richardhuo-nv]

What does the PR do?

This for fixing the model not able to load error for examples reported by QA:
https://nvbugspro.nvidia.com/bug/5229587

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• build
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Related PRs:

Where should the reviewer start?

Test plan:

tested the server could start after the change:

+----------------------+---------+--------+
| Model                | Version | Status |
+----------------------+---------+--------+
| densenet_onnx        | 1       | READY  |
| inception_onnx       | 1       | READY  |
| simple               | 1       | READY  |
| simple_dyna_sequence | 1       | READY  |
| simple_identity      | 1       | READY  |
| simple_int8          | 1       | READY  |
| simple_sequence      | 1       | READY  |
| simple_string        | 1       | READY  |
+----------------------+---------+--------+

I0527 23:53:54.575990 2994 metrics.cc:890] "Collecting metrics for GPU 0: NVIDIA H100 PCIe"
I0527 23:53:54.581935 2994 metrics.cc:783] "Collecting CPU metrics"
I0527 23:53:54.582033 2994 tritonserver.cc:2598]
+----------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
| Option                           | Value                                                                                                                                              |
+----------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
| server_id                        | triton                                                                                                                                             |
| server_version                   | 2.58.0                                                                                                                                             |
| server_extensions                | classification sequence model_repository model_repository(unload_dependents) schedule_policy model_configuration system_shared_memory cuda_shared_ |
|                                  | memory binary_tensor_data parameters statistics trace logging                                                                                      |
| model_repository_path[0]         | ./model_repository/                                                                                                                                |
| model_control_mode               | MODE_NONE                                                                                                                                          |
| strict_model_config              | 0                                                                                                                                                  |
| model_config_name                |                                                                                                                                                    |
| rate_limit                       | OFF                                                                                                                                                |
| pinned_memory_pool_byte_size     | 268435456                                                                                                                                          |
| cuda_memory_pool_byte_size{0}    | 67108864                                                                                                                                           |
| min_supported_compute_capability | 6.0                                                                                                                                                |
| strict_readiness                 | 1                                                                                                                                                  |
| exit_timeout                     | 30                                                                                                                                                 |
| cache_enabled                    | 0                                                                                                                                                  |
+----------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+

I0527 23:53:54.583369 2994 grpc_server.cc:2562] "Started GRPCInferenceService at 0.0.0.0:8001"
I0527 23:53:54.583530 2994 http_server.cc:4806] "Started HTTPService at 0.0.0.0:8000"
I0527 23:53:54.624361 2994 http_server.cc:358] "Started Metrics Service at 0.0.0.0:8002"

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[dmitry-tokarev-nv]

ran a test from the bug, and it passed with this change.