Add Elgato hw version to device info (#64922)

homeassistant/components/elgato/entity.py

@@ -21,6 +21,7 @@ class ElgatoEntity(Entity):
             model=info.product_name,
             name=info.display_name,
             sw_version=f"{info.firmware_version} ({info.firmware_build_number})",
+            hw_version=str(info.hardware_board_type),
         )
         if mac is not None:
             self._attr_device_info["connections"] = {

tests/components/elgato/test_button.py

@@ -47,6 +47,7 @@ async def test_button_identify(
     assert device_entry.model == "Elgato Key Light"
     assert device_entry.name == "Frenck"
     assert device_entry.sw_version == "1.0.3 (192)"
+    assert device_entry.hw_version == "53"
 
     await hass.services.async_call(
         BUTTON_DOMAIN,

tests/components/elgato/test_light.py

@@ -68,6 +68,7 @@ async def test_light_state_temperature(
     assert device_entry.model == "Elgato Key Light"
     assert device_entry.name == "Frenck"
     assert device_entry.sw_version == "1.0.3 (192)"
+    assert device_entry.hw_version == "53"
 
 
 @pytest.mark.parametrize(