chore(deps): update dependency starlette to v0.40.0 [security]

Author: renovate[bot]

requirements.txt

@@ -177,7 +177,7 @@ six==1.17.0
     # via python-dateutil
 sniffio==1.3.1
     # via anyio
-starlette==0.27.0
+starlette==0.40.0
     # via fastapi
 sympy==1.13.3
     # via