### 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.
snapshot.add_transformer(snapshot.transform.s3_api())
        # Ob
        # ht
        # put 
        _key = "key-with-metadata"
        metadata = {"TEST_META_1": "foo", "__meta_2": "bar"}
        aws_client.s3.put_(Bucket=s3_bucket, Key=_key, Metadata=metadata, Body="foo")
        metadata_saved = aws_client.s3.head_(Bucket=s3_bucket, Key=_key)["Metadata"]
        snapshot.match("head-", metadata_saved)
        # no
        assert metadata_saved == {"test_meta_1": "foo", "__meta_2": "bar"}
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        condition=is_old_provider, paths=["$..VersionId", "$..ContentLanguage"]
    )
    def test_upload_file_multipart(self, s3_bucket, tmpdir, snapshot, aws_client):