Fix execution integration tests (#5647)

* update waiting status

* revert to old nethermind version

Author: realbigsean

testing/execution_engine_integration/src/test_rig.rs

@@ -180,7 +180,7 @@ impl<Engine: GenericExecutionEngine> TestRig<Engine> {
                 // Run the routine to check for online nodes.
                 pair.execution_layer.watchdog_task().await;
 
-                if pair.execution_layer.is_synced().await {
+                if !pair.execution_layer.is_offline_or_erroring().await {
                     break;
                 } else if start_instant + EXECUTION_ENGINE_START_TIMEOUT > Instant::now() {
                     sleep(Duration::from_millis(500)).await;