RabbitMQ Container Name Override Issue in Azure Container Apps

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Describe the bug

# RabbitMQ Container Name Override Issue in Azure Container Apps

## Issue
1. When deploying a RabbitMQ container as an Azure Container App, the container name in Azure is automatically suffixed with a random string (e.g., `{name}-xyz123`).
2. So I override the container name to a fixed name (e.g., `rabbitmq-prod`) during deployment using `PublishAsAzureContainerApp(...)` method.
```cs
var rabbitmqAzureResourceName = builder.AddParameter("rabbitmq-name", "rabbitmq-prod");
var rabbitmq = builder
.AddRabbitMQ("rabbitmq", id, password)
.PublishAsAzureContainerApp((infra, app) =>
{
var rabbitmq = app.Template.Containers.Single(x => x.Value?.Name.Value == "rabbitmq").Value!;
app.Name = rabbitmqAzureResourceName.AsProvisioningParameter(infra);
rabbitmq.Name = rabbitmqAzureResourceName.AsProvisioningParameter(infra);
});
```
3. However, the connection string generated for other projects still uses the original container name (e.g., `rabbitmq`) instead of the overridden name (e.g., `rabbitmq-prod`).
- Expected: `amqp://{ID}:{PW}@rabbitmq-prod:5672`
- Actual: `amqp://{ID}:{PW}@rabbitmq:5672`

## Reproduction Steps

### Configure `AppHost.cs`
```cs
var builder = DistributedApplication.CreateBuilder(args);

// 1. Declare ID/PW for RabbitMQ
var id = builder.AddParameter("rabbitmq-id", "Administrator");
var password = builder.AddParameter("rabbitmq-password", "password1!");

// 2. Declare Azure Resource Name for RabbitMQ (expecting `rabbitmq-prod` in Azure Portal)
var rabbitmqAzureResourceName = builder.AddParameter("rabbitmq-name", "rabbitmq-prod");

// 3. Configure RabbitMQ container
var rabbitmq = builder
.AddRabbitMQ("rabbitmq", id, password)
.WithLifetime(ContainerLifetime.Persistent)
.WithManagementPlugin()
.WithOtlpExporter()
.WithExternalHttpEndpoints()
.PublishAsAzureContainerApp((infra, app) =>
{
// 3-1. Set RabbitMQ container name in Azure
// Intercept and override the name of the RabbitMQ container in Azure
// Otherwise, it will be genterated with a random suffix (e.g., `rabbitmq-xyz123`)
var rabbitmq = app.Template.Containers.Single(x => x.Value?.Name.Value == "rabbitmq").Value!;
app.Name = rabbitmqAzureResourceName.AsProvisioningParameter(infra);
rabbitmq.Name = rabbitmqAzureResourceName.AsProvisioningParameter(infra);
});

// 4. Add ConnectionString reference to RabbitMQ for other projects
// This will add environment variable `RABBITMQ__CONNECTIONSTRING`.
// - Expecting value: `amqp://Administrator:password1!@rabbitmq-prod:5672`
// - Actual value: `amqp://Administrator:password1!@rabbitmq:5672`
var api = builder.AddProject("api")
.WithReference(rabbitmq);

var app = builder.Build()
await app.RunAsync(CancellationToken.None);
```

### Reference
- [GitHub - dotnet/aspire - RabbitMQServerResource.cs#L83-L104](https://github.com/dotnet/aspire/blob/c019ae64900546eba6e0cca08f69c57f9ad14020/src/Aspire.Hosting.RabbitMQ/RabbitMQServerResource.cs#L83L104)

### Expected Behavior
- Container app `api` will have environment variable `RABBITMQ__CONNECTIONSTRING` with value:
- AS-IS: `amqp://Administrator:password1!@rabbitmq:5672`
- TO-BE: `amqp://Administrator:password1!@rabbitmq-prod:5672`

### Expected Behavior

_No response_

### Steps To Reproduce

_No response_

### Exceptions (if any)

_No response_

### .NET Version info

_No response_

### Anything else?

_No response_

Start with RabbitMQServerResource.cs#L83-L104 and trace how the RabbitMQ connection string is generated after PublishAsAzureContainerApp overrides the app and container names. Use the AppHost.cs reproduction from the issue to inspect the generated RABBITMQ__CONNECTIONSTRING value. Done means the referenced API receives rabbitmq-prod, while the RabbitMQ resource still deploys with the overridden Azure name.

Written by the indexing model from the issue text.