chore(deps): bump fastapi from 0.116.2 to 0.121.0

Bumps [fastapi](https://github.com/fastapi/fastapi) from 0.116.2 to 0.121.0.
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.116.2...0.121.0)

---
updated-dependencies:
- dependency-name: fastapi
  dependency-version: 0.121.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -11,7 +11,7 @@ package-mode = false
 [tool.poetry.dependencies]
 python = "^3.10"
 pydantic = "2.*"
-fastapi = "^0.116.2"
+fastapi = "^0.121.0"
 nc-py-api = {extras = ["app"], version = "^0.22.0"}
 langchain = "^0.3.27"
 niquests = "^3.15.2"