Fix OPTIONS response cache control header name

src/app.py

@@ -12,7 +12,7 @@ class ApiFlask(Flask):
     def make_default_options_response(self) -> Response:
         response = super().make_default_options_response()
         # max age is in seconds
-        response.headers["Cache-Control"] = f"max-age={60 * 60}"
+        response.headers["Access-Control-Max-Age"] = f"{60 * 60}"
         return response