Fix incorrect usage of begin_analyze_document - missing body parameter

[gerbermarco]

This PR fixes a TypeError caused by incorrect usage of the begin_analyze_document method from the azure.ai.documentintelligence SDK. The method requires the model ID as the first argument and the request payload to be passed explicitly using the body= keyword, which may have been introduced in a recent SDK version.

What Changed
Updated both process_file and process_sas_uri functions to correctly pass the request payload using body=.

Ensures compatibility with the current SDK version, where the body parameter is mandatory.

See the official documentation for reference: DocumentIntelligenceClient Class

Why
Without this fix, Azure Functions that use this method as part of the custom skill fail with a TypeError:

Result: Failure Exception: TypeError: DocumentIntelligenceClientOperationsMixin.begin_analyze_document() missing 1 required positional argument: 'body' Stack: File "/azure-functions-host/workers/python/3.10/LINUX/X64/azure_functions_worker/dispatcher.py", line 674, in _handle__invocation_request await self._run_async_func(fi_context, fi.func, args) File "/azure-functions-host/workers/python/3.10/LINUX/X64/azure_functions_worker/dispatcher.py", line 1012, in _run_async_func return await ExtensionManager.get_async_invocation_wrapper( File "/azure-functions-host/workers/python/3.10/LINUX/X64/azure_functions_worker/extension.py", line 143, in get_async_invocation_wrapper result = await function(**args) File "/home/site/wwwroot/function_app.py", line 204, in ReadDocument result_content.append(await process_sas_uri(client, record_id, data["sas_uri"], data["mode"])) # type: ignore File "/home/site/wwwroot/function_app.py", line 259, in process_sas_uri poller = await client.begin_analyze_document( File "/home/site/wwwroot/.python_packages/lib/site-packages/azure/core/tracing/decorator_async.py", line 119, in wrapper_use_tracer return await func(*args, **kwargs)