Add Litter Robot 4 DHCP discovery (#77463)

homeassistant/components/litterrobot/manifest.json

@@ -4,6 +4,7 @@
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/litterrobot",
   "requirements": ["pylitterbot==2022.8.0"],
+  "dhcp": [{ "hostname": "litter-robot4" }],
   "codeowners": ["@natekspencer"],
   "iot_class": "cloud_polling",
   "loggers": ["pylitterbot"]

homeassistant/generated/dhcp.py

@@ -62,6 +62,7 @@ DHCP: list[dict[str, str | bool]] = [
     {'domain': 'isy994', 'hostname': 'polisy*', 'macaddress': '000DB9*'},
     {'domain': 'lifx', 'macaddress': 'D073D5*'},
     {'domain': 'lifx', 'registered_devices': True},
+    {'domain': 'litterrobot', 'hostname': 'litter-robot4'},
     {'domain': 'lyric', 'hostname': 'lyric-*', 'macaddress': '48A2E6*'},
     {'domain': 'lyric', 'hostname': 'lyric-*', 'macaddress': 'B82CA0*'},
     {'domain': 'lyric', 'hostname': 'lyric-*', 'macaddress': '00D02D*'},