Update constants for units of measure to match updates in Home Assistant core.

Author: Tim Empringham

custom_components/satellitetracker/device_tracker.py

@@ -2,7 +2,7 @@
 
 from homeassistant.components.device_tracker.config_entry import TrackerEntity
 from homeassistant.components.device_tracker.const import DOMAIN as DEVICE_TRACKER
-from homeassistant.components.device_tracker.const import SOURCE_TYPE_GPS
+from homeassistant.components.device_tracker.const import SourceType
 from homeassistant.const import ATTR_NAME
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
@@ -63,7 +63,7 @@ def longitude(self):
     @property
     def source_type(self):
         """Return the source type of the client."""
-        return SOURCE_TYPE_GPS
+        return SourceType.GPS
 
     @property
     def device_info(self):

custom_components/satellitetracker/sensor.py

@@ -6,7 +6,7 @@
 
 from homeassistant.util.dt import as_local, utc_from_timestamp
 from homeassistant.components.sensor import ENTITY_ID_FORMAT
-from homeassistant.const import TIME_SECONDS, ATTR_NAME
+from homeassistant.const import UnitOfTime, ATTR_NAME
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.update_coordinator import (
     CoordinatorEntity,
@@ -97,7 +97,7 @@ def available(self) -> bool:
     @property
     def unit_of_measurement(self):
         """Return the UoM for this entity."""
-        return TIME_SECONDS
+        return UnitOfTime.SECONDS
 
     @property
     def state(self):