chore: fastapi bump

backend/requirements.txt

@@ -1,4 +1,4 @@
-fastapi==0.111.0
+fastapi==0.115.7
 uvicorn[standard]==0.30.6
 pydantic==2.9.2
 python-multipart==0.0.18

pyproject.toml

@@ -6,7 +6,7 @@ authors = [
 ]
 license = { file = "LICENSE" }
 dependencies = [
-    "fastapi==0.111.0",
+    "fastapi==0.115.7",
     "uvicorn[standard]==0.30.6",
     "pydantic==2.9.2",
     "python-multipart==0.0.18",