[Lambda] Go SDK for Durable Functions

### **Community Note**
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**Tell us about your request**

[Durable Functions](https://aws.amazon.com/about-aws/whats-new/2025/12/lambda-durable-multi-step-applications-ai-workflows/) support for Lambda functions using Golang SDK for checkpoints

**Which service(s) is this request for?**

Lambda Durable Functions

**Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?**

We use Go exclusively in our Lambda runtimes, and would like to take advantage of Durable Functions soon

**Are you currently working around this issue?**

We're not, we're currently blocked from adopting Durable Functions in our Go codebases.

Commencez par examiner l’annonce de Durable Functions dans l’issue et le contexte du service Lambda ; aucun fichier du dépôt, test ou point d’entrée n’est identifié. Le travail serait considéré comme terminé lorsque la prise en charge des checkpoints de Lambda Durable Functions dans le Go SDK aura été définie et fournie, ce qui nécessite de confirmer l’API et le périmètre prévus avec les maintainers.

Rédigé par le modèle d'indexation à partir du texte de l'issue.