Update urllib3 to 2.2.1

[pyup-bot]

This PR updates urllib3 from 2.2.0 to 2.2.1.

Changelog

2.2.1

🚀 urllib3 is fundraising for HTTP/2 support

[urllib3 is raising ~$40,000 USD](https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support) to release HTTP/2 support and ensure long-term sustainable maintenance of the project after a sharp decline in financial support for 2023. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects [please consider contributing financially](https://opencollective.com/urllib3) to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.

Thank you for your support.

Changes

- Fixed issue where `InsecureRequestWarning` was emitted for HTTPS connections when using Emscripten. (3331)
- Fixed `HTTPConnectionPool.urlopen` to stop automatically casting non-proxy headers to `HTTPHeaderDict`. This change was premature as it did not apply to proxy headers and `HTTPHeaderDict` does not handle byte header values correctly yet. (3343)
- Changed `ProtocolError` to `InvalidChunkLength` when response terminates before the chunk length is sent. (2860)
- Changed `ProtocolError` to be more verbose on incomplete reads with excess content. (3261)

Links

• PyPI: https://pypi.org/project/urllib3
• Changelog: https://data.safetycli.com/changelogs/urllib3/