### 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.
code: str = "InvalidArgument"
    sender_fault: bool = False
    status_code: int = 400
    ArgumentName: Optional[ArgumentName]
    ArgumentValue: Optional[ArgumentValue]
    HostId: Optional[HostId]
class SignatureDoesNotMatch(ServiceException):
    code: str = "SignatureDoesNotMatch"
    sender_fault: bool = False
    status_code: int = 403
    AWSAccessKeyId: Optional[AWSAccessKeyId]
    CanonicalRequest: Optional[CanonicalRequest]
    CanonicalRequestBytes: Optional[CanonicalRequestBytes]
    HostId: Optional[HostId]
    SignatureProvided: Optional[SignatureProvided]
    StringToSign: Optional[StringToSign]
    StringToSignBytes: Optional[StringToSignBytes]
ServerTime = datetime
Expires = datetime
class AccessDenied(ServiceException):
    code: str = "AccessDenied"
    sender_fault: bool = False
    status_code: int = 403
    Expires: Optional[Expires]
    ServerTime: Optional[ServerTime]
    X_Amz_Expires: Optional[X_Amz_Expires]
    HostId: Optional[HostId]
    HeadersNotSigned: Optional[HeadersNotSigned]
class AuthorizationQueryParametersError(ServiceException):