Update tqdm to 4.34.0

[pyup-bot]

This PR updates tqdm from 4.32.2 to 4.34.0.

Changelog

4.34.0

- add `leave=None` convenience option for `leave = position == 0`
- ensure nested completed bars respect `leave=True` (230)
- ensure nested bars are cleared before being moved up (795)
- support both ` ` and `=` syntax for CLI options (761 -> 774)
- misc documentation updates (778, 782)
- fix/update tests
- update GitHub docker package deployment

4.33.0

- fix `pandas==0.25` API change (780)
- add contributor badges (`sourcerer`)
- fix py26 travis CI
- metadata fixes
+ `.zenodo.json`
+ `CODEOWNERS`
- GitHub package registry docker deployment
- minor linting
- documentation updates (773)

Links

• PyPI: https://pypi.org/project/tqdm
• Changelog: https://pyup.io/changelogs/tqdm/
• Repo: https://github.com/tqdm/tqdm