fix import

Signed-off-by: Madhav Kandukuri <[email protected]>

Author: madhav165

mcpgateway/main.py

@@ -54,7 +54,7 @@
 from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm import Session
 from starlette.middleware.base import BaseHTTPMiddleware
-from starlette.middleware.proxy_headers import ProxyHeadersMiddleware
+from uvicorn.middleware.proxy_headers import ProxyHeadersMiddleware
 
 # First-Party
 from mcpgateway import __version__