Timeout connection after 3 minutes without data instead of 2 (2 was cutting it kind of short, causing false positives)

Author: nlz242

pyhilo/graphql.py

@@ -621,8 +621,8 @@ async def subscribe_to_location_updated(
         )
 
     # Seconds without any SSE event before treating the connection as stalled.
-    # Hilo's server sends periodic keepalive comments; 120 s is a safe margin.
-    _SSE_KEEPALIVE_TIMEOUT = 120
+    # Hilo's server sends periodic keepalive comments; 180 s is a safe margin.
+    _SSE_KEEPALIVE_TIMEOUT = 180
     # Reconnection back-off: starts at _BACKOFF_BASE, doubles each failure, caps at _BACKOFF_MAX.
     _BACKOFF_BASE = 5
     _BACKOFF_MAX = 300  # 5 minutes