### 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.
key = "my-key"
        aws_client.s3.put_(Bucket=s3_bucket, Key=key, Body=b"abcdefgh")
        _tags = aws_client.s3.get__tagging(Bucket=s3_bucket, Key=key)
        snapshot.match("created--tags", _tags)
        tag_set = {"TagSet": [{"Key": "tag1", "Value": "tag1"}]}
        aws_client.s3.put__tagging(Bucket=s3_bucket, Key=key, Tagging=tag_set)
        _tags = aws_client.s3.get__tagging(Bucket=s3_bucket, Key=key)
        snapshot.match("updated--tags", _tags)
        aws_client.s3.put__tagging(Bucket=s3_bucket, Key=key, Tagging={"TagSet": []})
        _tags = aws_client.s3.get__tagging(Bucket=s3_bucket, Key=key)
        snapshot.match("deleted--tags", _tags)
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(paths=["$..ServerSideEncryption"])
    @pytest.mark.skipif(
        condition=LEGACY_S3_PROVIDER,
        reason="see https://github.com/localstack/localstack/issues/6218",
    )
    def test_head__fields(self, s3_bucket, snapshot, aws_client):
        key = "my-key"
        aws_client.s3.put_(Bucket=s3_bucket, Key=key, Body=b"abcdefgh")
        response = aws_client.s3.head_(Bucket=s3_bucket, Key=key)
        snapshot.match("head-", response)
        with 
            aws_client.s3.head_(Bucket=s3_bucket, Key="doesnotexist")
        snapshot.match("head--404", e.value.response)
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        condition=is_old_provider, paths=["$..ContentLanguage", "$..Error.RequestID"]
    )
    def test_get__after_deleted_in_versioned_bucket(