Split the EDL21 user flow init from its data (#180748)

tests/components/edl21/test_config_flow.py

@@ -44,9 +44,15 @@ async def test_integration_already_exists(hass: HomeAssistant) -> None:
     ).add_to_hass(hass)
 
     result = await hass.config_entries.flow.async_init(
-        DOMAIN,
-        context={"source": SOURCE_USER},
-        data=VALID_CONFIG,
+        DOMAIN, context={"source": 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=VALID_CONFIG,
     )
 
     assert result["type"] is FlowResultType.ABORT