conda.yml is missing

### Operating System

Linux

### Version Information

incomplete example

### Steps to reproduce

https://github.com/Azure/azureml-examples/tree/main/cli/endpoints/online/custom-container/minimal/single-model/conda-in-dockerfile)/minimal-single-model-conda-in-dockerfile.dockerfile

uses
COPY ./environment/conda.yml /tmp/conda.yaml

but conda.yml does not exist.

### Expected behavior

build succeeded

### Actual behavior

missing file in the folder example, build fails

### Addition information

_No response_

Open cli/endpoints/online/custom-container/minimal/single-model/conda-in-dockerfile/minimal-single-model-conda-in-dockerfile.dockerfile and inspect its COPY reference to environment/conda.yml. Check the example directory and build context for the missing file; done means the example build succeeds with the referenced file available.

Written by the indexing model from the issue text.