Add identify device class to button (#95244)

homeassistant/components/button/__init__.py

@@ -35,6 +35,7 @@ _LOGGER = logging.getLogger(__name__)
 class ButtonDeviceClass(StrEnum):
     """Device class for buttons."""
 
+    IDENTIFY = "identify"
     RESTART = "restart"
     UPDATE = "update"
 

homeassistant/components/button/strings.json

@@ -12,6 +12,9 @@
     "_": {
       "name": "[%key:component::button::title%]"
     },
+    "identify": {
+      "name": "Identify"
+    },
     "restart": {
       "name": "Restart"
     },