bump use key delay

src/rtcSessionHelpers.ts

@@ -126,6 +126,7 @@ export async function enterRTCSession(
       membershipKeepAlivePeriod:
         matrixRtcSessionConfig?.membership_keep_alive_period,
       makeKeyDelay: matrixRtcSessionConfig?.key_rotation_on_leave_delay,
+      useKeyDelay: 5_000,
       useExperimentalToDeviceTransport,
     },
   );