# Bug report

# Detailed description

The `AWS.s3.upload()` (official SDK - https://github.com/aws/aws-sdk-js) returns an object with the `Location` key that points to 4566 instead of 4572 (LocalStack S3 port).

## Expected behavior

The `Location` should point to the file on S3.

Example:

```
Location: http://localhost:4572/path/to/bucket.txt
```

## Actual behavior

The `Location` points to the LocalStack entrypoint.

Example:

```
Location: http://localhost:4566/path/to/bucket.txt
```

# Steps to reproduce

- Upload a file to S3 using the official AWS SDK (https://github.com/aws/aws-sdk-js).
- Check out the `Location` property.

## Client code

```javascript
const AWS = require('aws-sdk');
const s3 = new AWS.S3({
  region: 'us-west-1',
  endpoint: 'http://localhost:4566',
  apiVersion: '2006-03-01',
  s3ForcePathStyle: true,
});

(async () => {
  await s3
    .createBucket({ Bucket: 'my-bucket', ACL: 'private' })
    .promise();

  const { Location } = await s3
    .upload({ Key: 'file.txt', Body: 'test', Bucket: 'my-bucket' })
    .promise();

  console.assert(Location === 'http://localhost:4572/my-bucket/file.txt');
})();
```
target = headers.get('x-amz-target', '')
    host = headers.get('host', '')
    auth_header = headers.get('authorization', '')
    ls_target = headers.get(HEADER_LOCALSTACK_TARGET, '')
    path = path or '/'
    
    result = '_unknown_', 0
    
    try:
        credential_scope = auth_header.split(',')[0].split()[1]
        _, _, _, service, _ = credential_scope.split('/')
        result = service, config.service_port(service)
    except Exception:
        pass
    
    if host.endswith('cloudfront.net'):
        path = path or '/'
        result = 'cloudfront', config.PORT_CLOUDFRONT
    elif target.startswith('AWSCognitoIdentityProviderService') or 'cognito-idp.' in host:
        result = 'cognito-idp', config.PORT_COGNITO_IDP
    elif target.startswith('AWSCognitoIdentityService') or 'cognito-identity.' in host:
        result = 'cognito-identity', config.PORT_COGNITO_IDENTITY
    elif result[0] == 's3' or re.match(r'.*s3(\-website)?\.([^\.]+\.)?amazonaws.com', host):
        host = re.sub(r's3-website\..*\.amazonaws', 's3.amazonaws', host)
        result = 's3', config.PORT_S3
    elif result[0] == 'states' in auth_header or host.startswith('states.'):
        result = 'stepfunctions', config.PORT_STEPFUNCTIONS
    elif '.execute-api.' in host:
        result = 'apigateway', config.PORT_APIGATEWAY
    elif target.startswith('DynamoDBStreams') or host.startswith('streams.dynamodb.'):