Bump fastapi from 0.91 to 0.115.6

Bumps [fastapi](https://github.com/fastapi/fastapi) from 0.91 to 0.115.6.
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.91.0...0.115.6)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-fastapi == 0.91
+fastapi == 0.115.6
 uvicorn==0.30.5
 pydantic==1.10.10
 pytest==7.4.2