Bump fastapi from 0.109.2 to 0.110.0 in /backend

Bumps [fastapi](https://github.com/tiangolo/fastapi) from 0.109.2 to 0.110.0.
- [Release notes](https://github.com/tiangolo/fastapi/releases)
- [Commits](fastapi/fastapi@0.109.2...0.110.0)

---
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]

backend/poetry.lock

@@ -8,7 +8,7 @@ packages = [{include = "quotes"}]
 
 [tool.poetry.dependencies]
 python = "^3.11"
-fastapi = "^0.109.2"
+fastapi = "^0.110.0"
 uvicorn = "^0.27.1"
 pydantic = "^2.6.1"
 pydantic-settings = "^2.2.1"