chore(deps): bump fastapi from 0.112.0 to 0.115.2

Bumps [fastapi](https://github.com/fastapi/fastapi) from 0.112.0 to 0.115.2.
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.112.0...0.115.2)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -9,7 +9,7 @@ sqlalchemy==2.0.35
 pydantic==2.9.2
 pydantic-settings==2.5.2
 uvicorn[standard]==0.31.1
-fastapi==0.112.0
+fastapi==0.115.2
 pendulum==3.0.0
 networkx==3.3
 numpy==2.0.1