Python: Pass api_key to azure config base init

[moonbox3]

Motivation and Context

In creating the AzureRealtimeWebsocket object, one can use an api key as part of AzureOpenAISettings. This api_key is not getting passed to the AzureOpenAIConfigBase.

Description

Pass the api key to the config base.

• Closes Python: Bug: AzureRealtimeWebsocket does not pass api_key for superclass constructor #11003

Contribution Checklist

• The code builds clean without any errors or warnings
• The PR follows the SK Contribution Guidelines and the pre-submission formatting script raises no violations
• All unit tests pass, and I have added new tests where possible
• I didn't break anyone 😄

[markwallace-microsoft]

Python Test Coverage Report •

File	Stmts	Miss	Cover	Missing
semantic_kernel/connectors/ai/open_ai/services
azure_realtime.py	29	8	72%	90–105, 124
TOTAL	20883	2377	89%

Python Unit Test Overview

Tests	Skipped	Failures	Errors	Time
3313	5 💤	0 ❌	0 🔥	1m 28s ⏱️