Add 5ms yield in loop() to allow beepTask and rfDecodeTask to run

src/fensterPiepser_NodeMCU_32S.cpp

@@ -272,6 +272,9 @@ void loop()
 	}
 
 	loopCountSincePause++;
+
+	/* yield to beepTask and rfDecodeTask between loop iterations */
+	vTaskDelay(pdMS_TO_TICKS(5));
 }
 
 /* don't call from interrupt, set gbRestartRequest to true instead */