[ECS] [request] running an ecs task should allow awslogs-stream-prefix being overridden

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**Tell us about your request**

When using code like this python script using `boto3.client('ecs').run_task()`, I should be able to specify a `awslogs-stream-prefix` for the awslogs driver within the container overrides. This way, I can clearly see which log stream corresponds to which fargate ecs task. Here's an example of using `run_task()`:

```
result = ecs_client.run_task(
cluster=clusterName,
taskDefinition=taskDefinitionName,
launchType='FARGATE',
networkConfiguration={
'awsvpcConfiguration': {
'subnets': [
...
]
}
},
overrides={
'containerOverrides': [
{
'name': taskDefinitionName,
// let me specify a log driver override with options like
'command': [
'/bin/sh',
'-c',
f'make deploy_qa env=qa-{build_id} args="{arg_string}"',
]
}
]
}
)
```

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

ECS

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

Right now, when I look at my log streams for this ecs task definition (see screenshot below), I have to find logs either by searching or using the timestamp. However, each log stream within my log group does correspond 1:1 with a build_id - but it's too hard to find which log stream is which, because we have so many of these running in parallel.

When creating a task definition I can specify a stream prefix BUT when running the task, I can specify all sorts of overrides, except for the stream prefix. Here are the docs on specifying the stream prefix during task definition creation. https://docs.aws.amazon.com/AmazonECS/latest/developerguide/using_awslogs.html

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

yes, currently I attempt to find the right stream by the timestamp which isn't too hard but it's not straightforward.

**Additional context**

I've opened a support task and they told me it's not possible and to request a community issue. Case id 9419954151

**Attachments**

Here's a screenshot of my log group. Each stream corresponds to a separate build_id, yet I have no way of getting the build_id to appear in this listing.


Start with the ECS run_task API and the linked awslogs documentation, focusing on the containerOverrides schema and how awslogs-stream-prefix is defined in task definitions. Define what an override should accept and verify that the requested build-specific prefix is reflected in the resulting Fargate log stream.

Written by the indexing model from the issue text.