### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

The Complete Multipart Upload operation generates the **InternalError** error for non-existing uploads.

### Expected Behavior

The Complete Multipart Upload operation generates the **NoSuchUpload** error for non-existing uploads.

### How are you starting LocalStack?

With a `docker run` command

### Steps To Reproduce

    docker run -it --rm -p 4566:4566 localstack/localstack

    aws s3api create-bucket --bucket test --endpoint-url http://localhost:4566 --create-bucket-configuration LocationConstraint=us-west-2

    aws s3api complete-multipart-upload --bucket test --endpoint-url http://localhost:4566 --key test --upload-id test

### Environment

```markdown
- OS: Windows 11
- LocalStack: latest
```


### Anything else?

The Abort Multipart Upload operation works correctly in LocalStack.

The official documentation: https://docs.aws.amazon.com/AmazonS3/latest/API/API_CompleteMultipartUpload.html
Amazon S3 throws the correct **NoSuchUpload** error for both Abort and Complete operations.
import sys
from datetime import datetime
from typing import IO, Dict, Iterable, Iterator, List, Optional, Union
if sys.version_info >= (3, 8):
    from typing import TypedDict
else:
    from typing_extensions import TypedDict
from localstack.aws.api import RequestContext, ServiceException, ServiceRequest, handler
AbortRuleId = str
AcceptRanges = str
AccessPointArn = str
AccountId = str
AllowQuotedRecordDelimiter = bool
AllowedHeader = str
AllowedMethod = str