### 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.
Bucket=bucket_2_name,
            CreateBucketConfiguration={"LocationConstraint": region_2},
        )
        response = client_2.get_bucket_location(Bucket=bucket_2_name)
        snapshot.match("get_bucket_location_bucket_2", response)
        # asse
        with pytest.raises(Exception) as exc:
            client_2.create_bucket(Bucket=f"bucket-{short_uid()}")
        snapshot.match("create_bucket_constraint_exc", exc.value.response)
        bucket_3_name = f"bucket-{short_uid()}"
        response = s3_create_bucket_with_client(
            client_2,
            Bucket=bucket_3_name,
            CreateBucketConfiguration={"LocationConstraint": region_2},
        )
        snapshot.match("create_bucket_bucket_3", response)
        response = client_2.get_bucket_location(Bucket=bucket_3_name)
        snapshot.match("get_bucket_location_bucket_3", response)
        with pytest.raises(ClientError) as exc:
            aws_client.s3.get_bucket_location(Bucket=f"random-bucket-test-{short_uid()}")
        snapshot.match("get_bucket_location_non_existent_bucket", exc.value.response)
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        condition=is_old_provider,
        paths=[
            "$..ContentLanguage",
            "$..VersionId",
        ],
    )
    def test_get__with_anon_credentials(self, s3_create_bucket, snapshot, aws_client):