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### Motivation and context
<!-- Why is this change required? What problem does it solve? If it
fixes an open
issue, please link to the issue here. Describe your changes in detail,
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This PR allows users to upload `.rar` archives during task creation.
It fixes several problems: 
1. Outdated mimetype for `.rar` type which is now `x-rar-compressed` 
2. Adds usage of `patool` util for `pyunpack` package, which previously
used only `zipfile`. Patool can handle different kinds of archives,
current supported list(by mimetype) can be found in the
`supportedArchives`
1. The pipeline for rar archives now is `pyunpack` -> `patool` ->
`unrar`

### How has this been tested?
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### Checklist
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- [x] I submit my changes into the `develop` branch
- [ ] I have created a changelog fragment <!-- see top comment in
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- [ ] I have updated the documentation accordingly
- [ ] I have added tests to cover my changes
- [x] I have linked related issues (see [GitHub docs](

https://help.github.com/en/github/managing-your-work-on-github/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword))
- ~~[ ] I have increased versions of npm packages if it is necessary

([cvat-canvas](https://github.com/opencv/cvat/tree/develop/cvat-canvas#versioning),

[cvat-core](https://github.com/opencv/cvat/tree/develop/cvat-core#versioning),

[cvat-data](https://github.com/opencv/cvat/tree/develop/cvat-data#versioning)
and

[cvat-ui](https://github.com/opencv/cvat/tree/develop/cvat-ui#versioning))~~

### License

- [x] I submit _my code changes_ under the same [MIT License](
https://github.com/opencv/cvat/blob/develop/LICENSE) that covers the
project.
  Feel free to contact the maintainers if that's a concern.