Update requests to 2.29.0

[pyup-bot]

This PR updates requests from 2.28.0 to 2.29.0.

Changelog

2.29.0

-------------------

**Improvements**

- Requests now defers chunked requests to the urllib3 implementation to improve
standardization. (6226)
- Requests relaxes header component requirements to support bytes/str subclasses. (6356)

2.28.2

-------------------

**Dependencies**

- Requests now supports charset\_normalizer 3.x. (6261)

**Bugfixes**

- Updated MissingSchema exception to suggest https scheme rather than http. (6188)

2.28.1

-------------------

**Improvements**

- Speed optimization in `iter_content` with transition to `yield from`. (6170)

**Dependencies**

- Added support for chardet 5.0.0 (6179)
- Added support for charset-normalizer 2.1.0 (6169)

Links

• PyPI: https://pypi.org/project/requests
• Changelog: https://pyup.io/changelogs/requests/
• Docs: https://requests.readthedocs.io

[pyup-bot]

Closing this in favor of #88