Enable connection timeout feature

PiperOrigin-RevId: 502701814

internal/platform/feature_flags.h

@@ -51,7 +51,7 @@ class FeatureFlags {
     bool enable_set_radio_state = false;
     // If the feature is enabled, medium connection will timeout when cannot
     // create connection with remote device in a duration.
-    bool enable_connection_timeout = false;
+    bool enable_connection_timeout = true;
     // Controls to enable or disable to track the status of Bluetooth classic
     // conncetion.
     bool enable_bluetooth_connection_status_track = true;