`unstructured` package does not provide web or xml

```
warning: The package `unstructured==0.18.31` does not have an extra named `web`
warning: The package `unstructured==0.18.31` does not have an extra named `xml`
```

https://pypi.org/project/unstructured/
>Provides-Extra: all-docs , csv , doc , docx , epub , image , md , odt , org , pdf , ppt , pptx , rtf , rst , tsv , xlsx , chunking-tokens , huggingface , local-inference , paddleocr 