Voice Agent tutorial based on gpt-realtime integrated with memory

**Describe the tutorial request**
A clear and concise description of what is being requested.

```
A tutorial which shows how to deploy a Voice Agent hosted in AgentCore Runtime based on OpenAI Realtime API models (gpt-reatime). The Agent should be integrated with AgentCore Memory so that it can remember previous conversation details if the same session ID is provided
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**Is this feature already supported by the AgentCore service?**
- [x] Yes
- [x] No

If `yes`, please provide any appropriate documentation link.