Speed up status updating in SimpliSafe (#22506)

* Speed up status updating in SimpliSafe

* Linting

* Member comments

homeassistant/components/simplisafe/__init__.py

@@ -1,4 +1,5 @@
 """Support for SimpliSafe alarm systems."""
+import asyncio
 import logging
 from datetime import timedelta
 
@@ -107,17 +108,18 @@ async def async_setup_entry(hass, config_entry):
 
     async def refresh(event_time):
         """Refresh data from the SimpliSafe account."""
-        for system in systems:
-            _LOGGER.debug('Updating system data: %s', system.system_id)
-
-            try:
-                await system.update()
-            except SimplipyError as err:
+        tasks = [system.update() for system in systems]
+        results = await asyncio.gather(*tasks, return_exceptions=True)
+        for system, result in zip(systems, results):
+            if isinstance(result, SimplipyError):
                 _LOGGER.error(
-                    'There was error updating "%s": %s', system.address, err)
+                    'There was error updating "%s": %s', system.address,
+                    result)
                 continue
 
-            async_dispatcher_send(hass, TOPIC_UPDATE.format(system.system_id))
+            _LOGGER.debug('Updated status of "%s"', system.address)
+            async_dispatcher_send(
+                hass, TOPIC_UPDATE.format(system.system_id))
 
             if system.api.refresh_token_dirty:
                 _async_save_refresh_token(