chore(deps): update dependency fastapi to v0.135.2 (#247)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

backend/requirements.txt

@@ -1,4 +1,4 @@
-fastapi==0.135.1
+fastapi==0.135.2
 uvicorn[standard]==0.42.0
 pyyaml==6.0.3
 httpx==0.28.1