chore(deps): bump fastapi in /reference-apps/fastapi (#92)

Bumps [fastapi](https://github.com/fastapi/fastapi) from 0.124.4 to 0.127.0.
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.124.4...0.127.0)

---
updated-dependencies:
- dependency-name: fastapi
  dependency-version: 0.127.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

reference-apps/fastapi/requirements.txt

@@ -1,4 +1,4 @@
-fastapi==0.124.4
+fastapi==0.127.0
 uvicorn[standard]==0.38.0
 pydantic-settings==2.12.0
 slowapi==0.1.9  # Rate limiting