Update dependency fastapi to v0.115.8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	OpenSSF
fastapi (changelog)	project.dependencies	patch	==0.115.7 -> ==0.115.8

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Release Notes

fastapi/fastapi (fastapi)

v0.115.8

Compare Source

Fixes

• 🐛 Fix OAuth2PasswordRequestForm and OAuth2PasswordRequestFormStrict fixed grant_type "password" RegEx. PR #​9783 by @​skarfie123.

Refactors

• ✅ Simplify tests for body_multiple_params . PR #​13237 by @​alejsdev.
• ♻️ Move duplicated code portion to a static method in the APIKeyBase super class. PR #​3142 by @​ShahriyarR.
• ✅ Simplify tests for request_files. PR #​13182 by @​alejsdev.

Docs

• 📝 Change the word "unwrap" to "unpack" in docs/en/docs/tutorial/extra-models.md. PR #​13061 by @​timothy-jeong.
• 📝 Update Request Body's tutorial002 to deal with tax=0 case. PR #​13230 by @​togogh.
• 👥 Update FastAPI People - Experts. PR #​13269 by @​tiangolo.

Translations

• 🌐 Add Japanese translation for docs/ja/docs/environment-variables.md. PR #​13226 by @​k94-ishi.
• 🌐 Add Russian translation for docs/ru/docs/advanced/async-tests.md. PR #​13227 by @​Rishat-F.
• 🌐 Update Russian translation for docs/ru/docs/tutorial/dependencies/dependencies-in-path-operation-decorators.md. PR #​13252 by @​Rishat-F.
• 🌐 Add Russian translation for docs/ru/docs/tutorial/bigger-applications.md. PR #​13154 by @​alv2017.

Internal

• ⬆️ Add support for Python 3.13. PR #​13274 by @​tiangolo.
• ⬆️ Upgrade AnyIO max version for tests, new range: >=3.2.1,<5.0.0. PR #​13273 by @​tiangolo.
• 🔧 Update Sponsors badges. PR #​13271 by @​tiangolo.
• ♻️ Fix notify_translations.py empty env var handling for PR label events vs workflow_dispatch. PR #​13272 by @​tiangolo.
• ♻️ Refactor and move scripts/notify_translations.py, no need for a custom GitHub Action. PR #​13270 by @​tiangolo.
• 🔨 Update FastAPI People Experts script, refactor and optimize data fetching to handle rate limits. PR #​13267 by @​tiangolo.
• ⬆ Bump pypa/gh-action-pypi-publish from 1.12.3 to 1.12.4. PR #​13251 by @​dependabot[bot].

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