Python SDK azure-ai-projects when calling OpenAPI service doesn't identify itself

**Is your feature request related to a problem? Please describe.**
The parameters an agent uses when calling OpenAPI services is not deterministic. However, if the request included a header of the AGENT_ID or AGENT_NAME then we could detect that in the OpenAPI service and constrain the request.

For example, we built a retrieval service that is used for experimentation. When we are doing an experiment to determine the right value for a hyper-parameter like TOP_K or THRESHOLD, we need what the agent sends to be deterministic so we can properly evaluate the performance.

**Describe the solution you'd like**
I would like a request header to contain the AGENT_ID.
If for some reason that couldn't work, a compromise could be when using Managed Identity, for the token payload to contain an AGENT_ID.

**Describe alternatives you've considered**
We solved our problem by introducing codes in our OpenAPI service. The agent is required to send a code with every request, something like "banana" (a term that the agent wouldn't associate with any particular configuration). We then use a parameter set associated with that code. Since the code isn't a term loaded with any meaning and we don't give the agent an option, a well crafted prompt can obtain 100% compliance sending the code.

**Additional context**
I am a Microsoft employee in ISE if you need to reach me: pelasne.