Split the Litter-Robot user flow init from its data (#180737)

tests/components/litterrobot/test_config_flow.py

@@ -71,9 +71,15 @@ async def test_already_configured(hass: HomeAssistant) -> None:
     ).add_to_hass(hass)
 
     result = await hass.config_entries.flow.async_init(
-        DOMAIN,
-        context={"source": config_entries.SOURCE_USER},
-        data=CONFIG[DOMAIN],
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+
+    assert result["type"] is FlowResultType.FORM
+    assert result["step_id"] == "user"
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        user_input=CONFIG[DOMAIN],
     )
 
     assert result["type"] is FlowResultType.ABORT