Update pydantic-settings to 2.1.0

[pyup-bot]

This PR updates pydantic-settings from 2.0.3 to 2.1.0.

Changelog

2.1.0

What's Changed
* Fix code for mentioned variable in Settings Management  by ikosmala in https://github.com/pydantic/pydantic-settings/pull/146
* Add docs to explain env_prefix does not apply to field alias by hramezani in https://github.com/pydantic/pydantic-settings/pull/147
* Remove old code relatd to optional dotenv by hramezani in https://github.com/pydantic/pydantic-settings/pull/155
* Fix broken links by hramezani in https://github.com/pydantic/pydantic-settings/pull/160
* Add note about nested model should inherit BaseModel by hramezani in https://github.com/pydantic/pydantic-settings/pull/165
* Fix 166 - Add docs for validating default values by stinovlas in https://github.com/pydantic/pydantic-settings/pull/168
* Update links by hramezani in https://github.com/pydantic/pydantic-settings/pull/170
* Fix typo at `Environment variable names` section by iagorrr in https://github.com/pydantic/pydantic-settings/pull/173
* resolve nested code fence line numbering by johndutchover in https://github.com/pydantic/pydantic-settings/pull/182
* Confirm Python 3.12 support by hramezani in https://github.com/pydantic/pydantic-settings/pull/174
* Drop Python 3.7 by hramezani in https://github.com/pydantic/pydantic-settings/pull/188

New Contributors
* ikosmala made their first contribution in https://github.com/pydantic/pydantic-settings/pull/146
* stinovlas made their first contribution in https://github.com/pydantic/pydantic-settings/pull/168
* iagorrr made their first contribution in https://github.com/pydantic/pydantic-settings/pull/173
* johndutchover made their first contribution in https://github.com/pydantic/pydantic-settings/pull/182

**Full Changelog**: https://github.com/pydantic/pydantic-settings/compare/v2.0.3...v2.1.0

Links

• PyPI: https://pypi.org/project/pydantic-settings
• Changelog: https://data.safetycli.com/changelogs/pydantic-settings/