Request to migrate Azure Spring Apps to Azure Container Apps

If no action or respond is taken, this template will be removed from awesone-azd gallery. Related to https://github.com/Azure/awesome-azd/issues/955

**Describe the bug**
https://github.com/Azure-Samples/ASA-Samples-Event-Driven-Application fails azd up with the following error:

ERROR: initializing project: initializing service 'simple-event-driven-app', Azure Spring Apps is no longer supported. Recommend using Azure Container Apps. For more information, please refer to https://aka.ms/asaretirement

**To Reproduce**
Steps to reproduce the behavior:

azd init -t Azure-Samples/ASA-Samples-Event-Driven-Application
azd up

**Expected behavior**
A clear and concise description of what you expected to happen.

Desktop (please complete the following information):

OS: [e.g. iOS]
Browser [e.g. chrome, safari]
Version [e.g. 22]
Smartphone (please complete the following information):

Device: [e.g. iPhone6]
OS: [e.g. iOS8.1]
Browser [e.g. stock browser, safari]
Version [e.g. 22]
Additional context
Add any other context about the problem here.

cc @lfraleigh

Start by running `azd init -t Azure-Samples/ASA-Samples-Event-Driven-Application` and `azd up`, then inspect the template configuration for the `simple-event-driven-app` service. Replace the unsupported Azure Spring Apps deployment with Azure Container Apps and verify that `azd up` completes successfully.

Written by the indexing model from the issue text.