Bump fastapi from 0.121.1 to 0.121.3 (#246)

Bumps [fastapi](https://github.com/fastapi/fastapi) from 0.121.1 to 0.121.3.
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.121.1...0.121.3)

---
updated-dependencies:
- dependency-name: fastapi
  dependency-version: 0.121.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

dev-requirements.txt

@@ -2,7 +2,7 @@ numpy==2.2.4
 scikit-learn==1.6.1
 scipy>=0.19.1
 uvicorn==0.38.0
-fastapi==0.121.1
+fastapi==0.121.3
 requests==2.32.5
 websockets==15.0.1
 pydantic==2.12.4