S3 CreateBucketOutput location() returns a URL rather than the bucket name

### Describe the issue

The documentation states `location()` returns: "A forward slash followed by the name of the bucket.". This should be updated to match the current behavior when creating an S3 bucket:
```
let constraint = BucketLocationConstraint::from("eu-west-1");
let cfg = CreateBucketConfiguration::builder()
.location_constraint(constraint)
.build();

let resp = client.create_bucket()
.bucket("my-test-bucket")
.create_bucket_configuration(cfg)
.send()
.await?;

println!("{}", resp.location().unwrap());
```
The output is:
```
http://my-test-bucket.s3.amazonaws.com/
```

### Links

https://docs.rs/aws-sdk-s3/latest/aws_sdk_s3/output/struct.CreateBucketOutput.html#method.location

Start with the linked docs.rs page for aws_sdk_s3::output::CreateBucketOutput::location and compare its stated return value with the reproduced S3 output. Update the documentation to describe the observed URL behavior, then verify the rendered API documentation reflects the correction.

Written by the indexing model from the issue text.