### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

When reading a file of a bucket with the Java AWS SDK the content-length is not set in the GetObjectResponse.

![image](https://github.com/localstack/localstack/assets/90579580/4c89a103-b064-4061-a91e-2012b19b838f)

![image](https://github.com/localstack/localstack/assets/90579580/8f52adf0-1205-4d6f-8fd0-6d026cac6db6)


### Expected Behavior

The content-length is included in the response

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

This is the content of my docker-compose file:
`  s3:
    container_name: "s3test"
    image: "localstack/localstack:2.2.0"
    ports:
      - "4566:4566"
    volumes:
      - ./src/test/local/s3/data:/var/lib/localstack/s3
      - ./src/test/local/s3/init-s3.sh:/etc/localstack/init/ready.d/init-s3.sh`

In the init script I create a bucket and put some file to it:
`awslocal s3api create-bucket --bucket test-bucket
aws s3api put-object --body /var/lib/localstack/s3/test.png --bucket test-bucket --key storage/test.png --content-type image/png --endpoint-url http://localhost:4566`

Then I query the file using the getObject Method of the S3Client of the Java AWS SDK


### Environment

```markdown
- OS: Windows 10
- LocalStack:2.2.0
```


### Anything else?

This behavior starts with version 2.2.0. Using version 2.1.0 everything works as expected
assert getattr(request, "_cached_data", None) is None, "data has already been cached"
        if consume_data:
            assert (
                not request.data
            )  
        return forward(request, forward_base_url=backend.url)
    backend = serve_asgi_adapter(_backend_handler)
    proxy = serve_asgi_adapter(_proxy_handler)
    tmp_file_1 = tmp_path / "temp_file_1.txt"
    tmp_file_1.write_text("1: hello\nworld")
    tmp_file_2 = tmp_path / "temp_file_2.txt"
    tmp_file_2.write_text("2: foobar")
    response = requests.post(
        proxy.url,
        params={"q": "yes"},
        data={"foo": "bar", "baz": "ed"},
        files={"upload_file_1": open(tmp_file_1, "rb"), "upload_file_2": open(tmp_file_2, "rb")},
    )
    assert response.ok
    doc = response.json()
    assert doc == {
        "data": "",
        "args": {"q": "yes"},
        "form": {"foo": "bar", "baz": "ed"},
        "files": {
            "upload_file_1": "1: hello\nworld",
            "upload_file_2": "2: foobar",
        },
    }