Testing the endpoint with sample data does not work

### Operating System

Windows

### Version Information

Not sure how to get that but the SDK version is 1.56.0

### Steps to reproduce

In step 9 of finetuning for text classification azureml-examples (https://github.com/Azure/azureml-examples/blob/main/sdk/python/foundation-models/system/finetune/text-classification/emotion-detection.ipynb), the code,
# score the sample_score.json file using the online endpoint with the azureml endpoint invoke method
response = workspace_ml_client.online_endpoints.invoke(
endpoint_name=online_endpoint_name,
deployment_name="demo",
request_file="./emotion-dataset/sample_score.json",
)
print("raw response: \n", response, "\n")
# convert the response to a pandas dataframe and rename the label column as scored_label
response_df = pd.read_json(response)
response_df = response_df.rename(columns={0: "scored_label"})
response_df.head(5)

Fails with the error -
HttpResponseError: (None) A value is not provided for the 'input_data' parameter.
Code: None
Message: A value is not provided for the 'input_data' parameter.

### Expected behavior

Scoring of the sample_score.json file using the online endpoint with the azureml endpoint invoke method

### Actual behavior

HttpResponseError: (None) A value is not provided for the 'input_data' parameter.
Code: None
Message: A value is not provided for the 'input_data' parameter.

### Addition information

_No response_