Use DeviceInfo in syncthing (#58580)

Co-authored-by: epenet <epenet@users.noreply.github.com>

homeassistant/components/syncthing/sensor.py

@@ -6,6 +6,7 @@ from homeassistant.components.sensor import SensorEntity
 from homeassistant.core import callback
 from homeassistant.exceptions import PlatformNotReady
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.event import async_track_time_interval
 
 from .const import (
@@ -130,15 +131,15 @@ class FolderSensor(SensorEntity):
         return False
 
     @property
-    def device_info(self):
+    def device_info(self) -> DeviceInfo:
         """Return device information."""
-        return {
-            "identifiers": {(DOMAIN, self._server_id)},
-            "name": f"Syncthing ({self._syncthing.url})",
-            "manufacturer": "Syncthing Team",
-            "sw_version": self._version,
-            "entry_type": "service",
-        }
+        return DeviceInfo(
+            entry_type="service",
+            identifiers={(DOMAIN, self._server_id)},
+            manufacturer="Syncthing Team",
+            name=f"Syncthing ({self._syncthing.url})",
+            sw_version=self._version,
+        )
 
     async def async_update_status(self):
         """Request folder status and update state."""