### 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.
if expires := request.get("Expires"):
            key_object.set_expiry(expires)
        elif "expires" in key_object.metadata:  
            metadata = {k: v for k, v in key_object.metadata.items() if k != "expires"}
            key_object.set_metadata(metadata, replace=True)
        if key_object.kms_key_id:
            
            key_object.kms_key_id = arns.kms_key_arn(
                key_id=key_object.kms_key_id,
                account_id=moto_bucket.account_id,
                region_name=moto_bucket.region_name,
            )
            response["SSEKMSKeyId"] = key_object.kms_key_id
        self._notify(context)
        return response
    @handler("CopyObject", expand=False)
    def copy_object(
        self,
        context: RequestContext,
        request: CopyObjectRequest,
    ) -> CopyObjectOutput:
        if not config.S3_SKIP_KMS_KEY_VALIDATION and (sse_kms_key_id := request.get("SSEKMSKeyId")):
            moto_backend = get_moto_s3_backend(context)
            bucket = get_bucket_from_moto(moto_backend, bucket=request["Bucket"])
            validate_kms_key_id(sse_kms_key_id, bucket)
        response: CopyObjectOutput = call_moto(context)
        self._notify(context)
        return response
    @handler("DeleteObject", expand=False)
    def delete_object(